User Commands                                             lftp(1)



NAME
     lftp - Sophisticated file transfer program

SYNTAX
     lftp [-d] [-e cmd] [-p port] [-u user[,pass]] [site]
     lftp -f script_file
     lftp -c commands
     lftp --version
     lftp --help


VERSION
     This man page documents lftp version 4.0.4.


DESCRIPTION
     lftp  is  a  file transfer program that allows sophisticated
     ftp, http and other connections to other hosts. If  site  is
     specified  then  lftp  will connect to that site otherwise a
     connection has to be established with the open command.

     lftp can handle several file access  methods  -  ftp,  ftps,
     http,  https,  hftp, fish, sftp and file (https and ftps are
     only available when lftp is compiled with GNU TLS or OpenSSL
     library).  You  can  specify the method to use in `open URL'
     command,  e.g.  `open   http://www.us.kernel.org/pub/linux'.
     hftp  is  ftp-over-http-proxy protocol. It can be used auto-
     matically  instead  of  ftp   if   ftp:proxy   is   set   to
     `http://proxy[:port]'.  Fish  is  a protocol working over an
     ssh connection to a unix account. SFtp is a protocol  imple-
     mented in ssh2 as sftp subsystem.

     Besides  FTP-like protocols, lftp has support for BitTorrent
     protocol as `torrent' command. Seeding is also supported.


     Every operation in lftp is reliable, that is any  not  fatal
     error  is ignored and the operation is repeated. So if down-
     loading breaks, it will be restarted from the point automat-
     ically.  Even  if  ftp server does not support REST command,
     lftp will try to retrieve the file from the  very  beginning
     until the file is transferred completely.

     lftp  has  shell-like  command syntax allowing you to launch
     several commands in parallel in background (&). It  is  also
     possible  to  group  commands  within () and execute them in
     background. All background jobs are  executed  in  the  same
     single process. You can bring a foreground job to background
     with ^Z (c-z) and back with command `wait' (or `fg' which is
     alias  to `wait'). To list running jobs, use command `jobs'.
     Some commands allow redirecting their output (cat, ls,  ...)
     to  file  or  via  pipe to external command. Commands can be
     executed conditionally based on termination status of previ-
     ous command (&&, ||).

     If  you  exit lftp when some jobs are not finished yet, lftp
     will move itself to nohup mode in background. The same  hap-
     pens  when you have a real modem hangup or when you close an
     xterm.

     lftp has builtin mirror which can download or update a whole
     directory  tree.  There  is  also reverse mirror (mirror -R)
     which uploads or updates a directory tree on server.  Mirror
     can also synchronize directories between two remote servers,
     using FXP if available.

     There is command `at' to launch a job at specified  time  in
     current  context,  command  `queue'  to  queue  commands for
     sequential execution for current server, and much more.

     On startup, lftp executes /etc/lftp.conf and then  ~/.lftprc
     and  ~/.lftp/rc.  You  can  place aliases and `set' commands
     there. Some people prefer to see full  protocol  debug,  use
     `debug'  to  turn  the  debug  on. Use `debug 3' to see only
     greeting messages and error messages.

     lftp has a number of settable variables. You  can  use  `set
     -a' to see all variables and their values or `set -d' to see
     list of defaults.  Variable names  can  be  abbreviated  and
     prefix can be omitted unless the rest becomes ambiguous.

     If    lftp    was    compiled    with   OpenSSL   (configure
     --with-openssl), then it includes software developed by  the
     OpenSSL   Project   for   use   in   the   OpenSSL  Toolkit.
     (http://www.openssl.org/)


  Commands
     ! shell command

     Launch shell or shell command.

          !ls

     To do a directory listing of the local host.

     alias  [name [value]]

     Define or undefine alias name.  If  value  is  omitted,  the
     alias  is  undefined,  else  it takes the value value. If no
     argument is given the current aliases are listed.

          alias dir ls -lF
          alias less zmore

     anon

     Sets the user to anonymous.  This is the default.

     at time [ -- command ]

     Wait until the given time and execute given (optional)  com-
     mand. See also at(1).

     bookmark  [subcommand]

     The bookmark command controls bookmarks.
          add <name> [<loc>]  add current place or given location
                         to bookmarks and bind to given name
          del <name>          remove bookmark with name
          edit           start editor on bookmarks file
          import <type>       import foreign bookmarks
          list           list bookmarks (default)

     cache  [subcommand]

     The  cache command controls local memory cache.  The follow-
     ing subcommands are recognized:
          stat           print cache status (default)
          on|off              turn on/off caching
          flush               flush cache
          size lim            set memory limit, -1 means unlimited
          expire Nx      set cache expiration time to N seconds (x=s)
                         minutes (x=m) hours (x=h) or days (x=d)

     cat files

     cat outputs the remote file(s) to stdout.  (See  also  more,
     zcat and zmore)

     cd rdir

     Change current remote directory.  The previous remote direc-
     tory is stored as `-'. You can  do  `cd  -'  to  change  the
     directory  back.   The  previous  directory for each site is
     also stored on disk, so you can do `open site;  cd  -'  even
     after lftp restart.

     chmod mode files

     Change  permission mask on remote files. The mode must be an
     octal number.

     close [-a]

     Close idle connections.  By default only  with  the  current
     server, use -a to close all idle connections.

     cls [OPTS] files...

     `cls' tries to retrieve information about specified files or
     directories and outputs the information according to  format
     options.  The difference between `ls' and `cls' is that `ls'
     requests the server to format file listing, and  `cls'  for-
     mats it itself, after retrieving all the needed information.
     See `help cls' for options.

     command cmd args...

     execute given command ignoring aliases.

     debug [-o file] level|off

     Switch debugging to level or turn it off.  Use -o  to  redi-
     rect the debug output to a file.

     echo [-n] string

     guess what it does.

     eval [-f format ] args...

     without  -f  it  just executes given arguments as a command.
     With -f, arguments are transformed into a new  command.  The
     format  can  contain plain text and placeholders $0...$9 and
     $@, corresponding to the arguments.

     exit [bg] [top] [kill] [code]

     exit will exit from lftp or move to background if there  are
     active  jobs. If no job is active, code is passed to operat-
     ing system as lftp's termination status. If code is omitted,
     the exit code of last command is used.

     `exit  bg'  forces  moving to background when cmd:move-back-
     ground is false.  `exit top' makes top level `shell' (inter-
     nal lftp command executor) terminate.  `exit kill' kills all
     numbered jobs before exiting. The options can  be  combined,
     e.g.  `at 08:00 -- exit top kill &' kills all jobs and makes
     lftp exit at specified time.

     fg

     Alias for `wait'.

     find  [directory]

     List files in the directory (current directory  by  default)
     recursively.   This can help with servers lacking ls -R sup-
     port. You can redirect output of this command.

     ftpcopy

     Obsolete. Use one of the following instead:
          get ftp://... -o ftp://...
          get -O ftp://... file1 file2...
          put ftp://...
          mput ftp://.../*
          mget -O ftp://... ftp://.../*
     or other combinations to get FXP transfer (directly  between
     two  ftp  servers).   lftp would fallback to plain copy (via
     client) if FXP transfer cannot be initiated  or  ftp:use-fxp
     is false.

     get [-E] [-a] [-c] [-O base] rfile [-o lfile] ...

     Retrieve  the  remote  file  rfile and store it as the local
     file lfile.  If -o is omitted, the file is stored  to  local
     file named as base name of rfile. You can get multiple files
     by specifying multiple instances of rfile  (and  -o  lfile).
     Does not expand wildcards, use mget for that.
          -c        continue, reget
          -E        delete source files after successful transfer
          -a        use ascii mode (binary is the default)
          -O <base> specifies base directory or URL where files should be placed

     Examples:
          get README
          get README -o debian.README
          get README README.mirrors
          get README -o debian.README README.mirrors -o debian.mirrors
          get README -o ftp://some.host.org/debian.README
          get README -o ftp://some.host.org/debian-dir/ (end slash is important)

     get1 [OPTS] rfile

     Transfer a single file. Options:
          -o <lfile>     destination file name (default -  of rfile)
          -c        continue, reget
          -E        delete source files after successful transfer
          -a        use ascii mode (binary is the default)
          --source-region=<from-to>
                    transfer specified region of source file
          --target-position=<pos>
                    position in target file to write data at

     glob [-d] [-a] [-f] command patterns

     Glob  given  patterns  containing  metacharacters  and  pass
     result to given command.  E.g. ``glob echo *''.
          -f   plain files (default)
          -d   directories
          -a   all types

     help [cmd]

     Print help for cmd or if no cmd was specified print  a  list
     of available commands.

     jobs [-v]

     List running jobs. -v means verbose, several -v can be spec-
     ified.

     kill all|job_no

     Delete specified job with job_no or all jobs.   (For  job_no
     see jobs)

     lcd ldir

     Change  current  local  directory  ldir.  The previous local
     directory is stored as `-'. You can do `lcd -' to change the
     directory back.

     lpwd

     Print current working directory on local machine.

     ls params

     List  remote  files. You can redirect output of this command
     to file or via pipe to external  command.   By  default,  ls
     output  is  cached,  to  see  new  listing use rels or cache
     flush.

     mget [-c] [-d] [-a] [-E] [-O base] files

     Gets selected files with expanded wildcards.

          -c        continue, reget.
          -d        create directories the same as file names and get
                    the files into them instead of current directory.
          -E        delete source files after successful transfer
          -a        use ascii mode (binary is the default)
          -O <base> specifies base directory or URL where files should be placed

     mirror [OPTS] [source [target]]

     Mirror specified source directory to local target directory.
     If  target directory ends with a slash, the source base name
     is appended to target directory name. Source  and/or  target
     can be URLs pointing to directories.

          -c, --continue      continue a mirror job if possible
          -e, --delete        delete files not present at remote site
              --delete-first       delete old files before transferring new ones
              --depth-first        descend into subdirectories before transferring files
          -s, --allow-suid         set suid/sgid bits according to remote site
              --allow-chown   try to set owner and group on files
              --ascii         use ascii mode transfers (implies --ignore-size)
              --ignore-time        ignore time when deciding whether to download
              --ignore-size        ignore size when deciding whether to download
              --only-missing  download only missing files
              --only-existing download only files already existing at target
          -n, --only-newer    download only newer files (-c won't work)
              --no-empty-dirs don't create empty directories (implies --depth-first)
          -r, --no-recursion  don't go to subdirectories
              --no-symlinks   don't create symbolic links
          -p, --no-perms      don't set file permissions
              --no-umask      don't apply umask to file modes
          -R, --reverse       reverse mirror (put files)
          -L, --dereference   download symbolic links as files
          -N, --newer-than=SPEC    download only files newer than specified time
              --on-change=CMD      execute the command if anything has been changed
              --older-than=SPEC    download only files older than specified time
              --size-range=RANGE   download only files with size in specified range
          -P, --parallel[=N]  download N files in parallel
              --use-pget[-n=N]     use pget to transfer every single file
              --loop          loop until no changes found
          -i RX, --include RX include matching files
          -x RX, --exclude RX exclude matching files
          -I GP, --include-glob GP include matching files
          -X GP, --exclude-glob GP exclude matching files
          -v, --verbose[=level]    verbose operation
              --log=FILE      write lftp commands being executed to FILE
              --script=FILE        write lftp commands to FILE, but don't execute them
              --just-print, --dry-run   same as --script=-
              --use-cache          use cached directory listings
          --Remove-source-files    remove files after transfer (use with caution)
          -a             same as --allow-chown --allow-suid --no-umask

     When  using  -R, the first directory is local and the second
     is remote.  If the second directory is omitted, base name of
     first  directory  is used.  If both directories are omitted,
     current local and remote directories are  used.   If  target
     directory  ends  with  a  slash (except root directory) then
     base name of source directory is appended.

     RX is an extended regular expression, just like in egrep(1).

     GP is a glob pattern, e.g. `*.zip'.

     Include and exclude options can be specified multiple times.
     It means that a file or directory would be  mirrored  if  it
     matches  an include and does not match to excludes after the
     include, or does not match anything and the first  check  is
     exclude. Directories are matched with a slash appended.

     Note  that  symbolic links are not created when uploading to
     remote server, because ftp protocol cannot do it. To  upload
     files  the  links  refer to, use `mirror -RL' command (treat
     symbolic links as files).

     For option --newer-than you can either  specify  a  file  or
     time  specification  like  that  used by at(1) command, e.g.
     `now-7days' or `week ago'. If you specify a file, then modi-
     fication time of that file will be used.

     Verbosity level can be selected using --verbose=level option
     or by several -v options, e.g. -vvv. Levels are:
          0 - no output (default)
          1 - print actions
          2 - +print not deleted file names (when -e is not specified)
          3 - +print directory names which are mirrored

     --only-newer   turns   off   file   size   comparison    and
     uploads/downloads  only  newer files even if size is differ-
     ent. By default older  files  are  transferred  and  replace
     newer ones.

     You  can  mirror  between  two  servers  if you specify URLs
     instead of  directories.   FXP  is  used  automatically  for
     transfers between ftp servers, if possible.

     Some ftp servers hide dot-files by default (e.g. .htaccess),
     and show them only when LIST command is used with -a option.
     In such case try to use `set ftp:list-options -a'.

     mkdir [-p] dir(s)

     Make  remote directories. If -p is used, make all components
     of paths.

     module module [ args ]

     Load given module using dlopen(3) function. If  module  name
     does  not  contain  a  slash,  it is searched in directories
     specified by module:path variable.  Arguments are passed  to
     module_init   function.  See  README.modules  for  technical
     details.

     more files

     Same as `cat files | more'. if PAGER is set, it is  used  as
     filter.  (See also cat, zcat and zmore)

     mput [-c] [-d] [-a] [-E] [-O base] files

     Upload files with wildcard expansion. By default it uses the
     base name of local name as remote one. This can  be  changed
     by `-d' option.
          -c        continue, reput
          -d        create directories the same as in file names and put the
                    files into them instead of current directory
          -E        delete source files after successful transfer (dangerous)
          -a        use ascii mode (binary is the default)
          -O <base> specifies base directory or URL where files should be placed

     mrm file(s)

     Same  as  `glob rm'. Removes specified file(s) with wildcard
     expansion.

     mv file1 file2

     Rename file1 to file2.

     nlist [args]

     List remote file names

     open [-e cmd] [-u user[,pass]] [-p port] host|url

     Select an ftp server.

     pget [OPTS] rfile [-o lfile]

     Gets the specified file using several connections. This  can
     speed  up  transfer,  but  loads  the net and server heavily
     impacting other users. Use only if you really have to trans-
     fer the file ASAP.  Options:
          -c        continue transfer. Requires lfile.lftp-pget-status file.
          -n maxconn     set maximum number of connections (default is taken from pget:default-n setting)

     put [-E] [-a] [-c] [-O base] lfile [-o rfile]

     Upload lfile with remote name rfile. If -o omitted, the base
     name of lfile is used as remote name. Does not expand  wild-
     cards, use mput for that.
          -o <rfile>     specifies remote file name (default -  of lfile)
          -c        continue, reput
                    it requires permission to overwrite remote files
          -E        delete source files after successful transfer (dangerous)
          -a        use ascii mode (binary is the default)
          -O <base> specifies base directory or URL where files should be placed

     pwd [-p]

     Print  current  remote URL. Use `-p' option to show password
     in the URL.

     queue [-n num ] cmd

     Add the given command to  queue  for  sequential  execution.
     Each  site  has  its own queue. `-n' adds the command before
     the given item in the queue. Don't  try  to  queue  `cd'  or
     `lcd'  commands,  it may confuse lftp. Instead do the cd/lcd
     before `queue' command, and it will remember  the  place  in
     which  the command is to be done. It is possible to queue up
     an already running job by `queue wait <jobno>', but the  job
     will  continue  execution  even  if  it  is not the first in
     queue.

     `queue stop' will stop the queue, it will  not  execute  any
     new commands, but already running jobs will continue to run.
     You can use `queue stop' to create an empty  stopped  queue.
     `queue  start'  will  resume queue execution.  When you exit
     lftp, it will start all stopped queues automatically.

     `queue' with no arguments will either create a stopped queue
     or print queue status.

     queue --delete|-d [index or wildcard expression]

     Delete  one  or more items from the queue. If no argument is
     given, the last entry in the queue is deleted.

     queue --move|-m <index or wildcard expression> [index]

     Move the given items before the given queue index, or to the
     end if no destination is given.

          -q   Be quiet.
          -v   Be verbose.
          -Q   Output in a format that can be used to re-queue.
               Useful with --delete.

          > get file &
          [1] get file
          > queue wait 1
          > queue get another_file
          > cd a_directory
          > queue get yet_another_file

          queue -d 3          Delete the third item in the queue.
          queue -m 6 4        Move the sixth item in the queue before the fourth.
          queue -m "get*zip" 1     Move all commands matching "get*zip" to the beginning
                         of the queue.  (The order of the items is preserved.)
          queue -d "get*zip"  Delete all commands matching "get*zip".

     quote cmd

     For FTP - send the command uninterpreted. Use with caution -
     it can lead to unknown remote  state  and  thus  will  cause
     reconnect.  You  cannot  be  sure  that any change of remote
     state because of quoted command is solid - it can  be  reset
     by reconnect at any time.

     For  HTTP  -  specific to HTTP action. Syntax: ``quote <com-
     mand>  [<args>]''.   Command  may   be   ``set-cookie''   or
     ``post''.
          open http://www.site.net
          quote set-cookie "variable=value; othervar=othervalue"
          set http:post-content-type application/x-www-form-urlencoded
          quote post /cgi-bin/script.cgi "var=value&othervar=othervalue" > local_file

     For  FISH - send the command uninterpreted. This can be used
     to execute arbitrary commands on server.  The  command  must
     not  take  input  or  print ### at new line beginning. If it
     does, the protocol will become out of sync.
          open fish://server
          quote find -name \*.zip

     reget rfile [-o lfile]

     Same as `get -c'.

     rels [args]

     Same as `ls', but ignores the cache.

     renlist [args]

     Same as `nlist', but ignores the cache.

     repeat [ -c <count>] [[-d] delay] [command]

     Repeat  the  command.  Between  the  commands  a  delay   is
     inserted, by default 1 second.  Option `-c' limits number of
     repeations. Option `--while-ok'  breaks  loop  when  command
     returns non-zero exit code; `--until-ok' breaks on zero exit
     code.
     Examples:
          repeat at tomorrow -- mirror
          repeat 1d mirror

     reput lfile [-o rfile]

     Same as `put -c'.

     rm [-r] [-f] files

     Remove remote files.  Does not expand wildcards, use mrm for
     that.  -r  is for recursive directory remove. Be careful, if
     something goes wrong you can lose files. -f  suppress  error
     messages.

     rmdir dir(s)

     Remove remote directories.

     scache [session]

     List cached sessions or switch to specified session.

     set [var [val]]

     Set  variable to given value. If the value is omitted, unset
     the variable.  Variable name  has  format  ``name/closure'',
     where  closure can specify exact application of the setting.
     See below for details.  If set is called  with  no  variable
     then only altered settings are listed.  It can be changed by
     options:

          -a   list all settings, including default values
          -d   list only default values, not necessary current ones

     site site_cmd

     Execute site command site_cmd and output  the  result.   You
     can redirect its output.

     sleep interval

     Sleep  given  time interval and exit. Interval is in seconds
     by default, but can be suffixed with 'm', 'h', 'd' for  min-
     utes, hours and days respectively.  See also at.

     slot [name]

     Select specified slot or list all slots allocated. A slot is
     a connection to a server, somewhat like a  virtual  console.
     You can create multiple slots connected to different servers
     and switch between them. You can also  use  slot:name  as  a
     pseudo-URL evaluating to that slot location.

     Default  readline  binding  allows  quick  switching between
     slots named 0-9 using Meta-0 - Meta-9 keys  (often  you  can
     use Alt instead of Meta).

     source file
     source -e command

     Execute commands recorded in file file or returned by speci-
     fied external command.
          source ~/.lftp/rc
          source -e echo help

     suspend

     Stop lftp process. Note that transfers will be also  stopped
     until  you  continue  the process with shell's fg or bg com-
     mands.

     torrent torrent-file [-O directory]

     Start BitTorrent process for the given  torrent-file,  which
     can  be  a local file or URL. Existing files are first vali-
     dated. Missing pieces are downloaded. Files  are  stored  in
     specified directory or current working directory by default.
     Seeding continues until ratio  reachs  torrent:stop-on-ratio
     setting or time of torrent:seed-max-time outs.

     user user [pass]
     user URL [pass]

     Use  specified  info for remote login. If you specify an URL
     with user name, the entered password will be cached so  that
     future URL references can use it.

     version

     Print lftp version.

     wait [jobno]
     wait all

     Wait  for  specified  job to terminate. If jobno is omitted,
     wait for last backgrounded job.

     `wait all' waits for all jobs termination.

     zcat files

     Same as cat, but filter each file through  zcat.  (See  also
     cat, more and zmore)

     zmore files

     Same  as  more, but filter each file through zcat. (See also
     cat, zcat and more)


  Settings
     On startup, lftp executes ~/.lftprc and ~/.lftp/rc.  You can
     place  aliases  and `set' commands there. Some people prefer
     to see full protocol debug, use `debug' to  turn  the  debug
     on.

     There  is also a system-wide startup file in /etc/lftp.conf.
     It can be in different directory, see FILES section.

     lftp has the following settable variables (you can also  use
     `set -a' to see all variables and their values):

     bmk:save-passwords (boolean)
          save  plain  text  passwords  in  ~/.lftp/bookmarks  on
          `bookmark add' command.  Off by default.

     cmd:at-exit (string)
          the commands in string are executed before lftp  exits.

     cmd:csh-history (boolean)
          enables csh-like history expansion.

     cmd:default-protocol (string)
          The  value  is  used when `open' is used with just host
          name without protocol. Default is `ftp'.

     cmd:fail-exit (boolean)
          if true, exit when an unconditional (without || and  &&
          at begin) command fails.

     cmd:long-running (seconds)
          time  of  command  execution,  which  is  considered as
          `long' and a beep is done before next prompt.  0  means
          off.

     cmd:ls-default (string)
          default ls argument

     cmd:move-background (boolean)
          when false, lftp refuses to go to background when exit-
          ing. To force it, use `exit bg'.

     cmd:move-background-detach (boolean)
          when true (default), lftp detaches itself from the con-
          trol terminal when moving to background, it is not pos-
          sible to attach back; when false, lftp tricks the shell
          to  move lftp to background process group and continues
          to run, then fg shell command brings lftp back to fore-
          ground unless it has done all jobs and terminated.

     cmd:prompt (string)
          The  prompt.  lftp  recognizes the following backslash-
          escaped special characters that are decoded as follows:

          \@   insert @ if current user is not default
          \a   an ASCII bell character (07)
          \e   an ASCII escape character (033)
          \h   the hostname you are connected to
          \n   newline
          \s   the name of the client (lftp)
          \S   current slot name
          \u   the username of the user you are logged in as
          \U   the    URL    of    the    remote    site   (e.g.,
               ftp://g437.ub.gu.se/home/james/src/lftp)
          \v   the version of lftp (e.g., 2.0.3)
          \w   the current working directory at the remote site
          \W   the base name of the current working directory  at
               the remote site
          \nnn the  character  corresponding  to the octal number
               nnn
          \\   a backslash
          \?   skips next character if previous substitution  was
               empty.
          \[   begin a sequence of non-printing characters, which
               could be used to embed a terminal control sequence
               into the prompt
          \]   end a sequence of non-printing characters


     cmd:parallel (number)
          Number of jobs run in parallel in non-interactive mode.
          For example, this may be useful for scripts with multi-
          ple  `get'  commands. Note that setting this to a value
          greater than 1 changes conditional execution behaviour,
          basically makes it inconsistent.

     cmd:queue-parallel (number)
          Number of jobs run in parallel in a queue.

     cmd:time-style (string)
          This  setting is the default value for cls --time-style
          option.

     cmd:trace (boolean)
          when true, lftp prints the commands it  executes  (like
          sh -x).

     cache:cache-empty-listings (boolean)
          When false, empty listings are not cached.

     cache:enable (boolean)
          When false, cache is disabled.

     cache:expire (time interval)
          Positive cache entries expire in this time interval.

     cache:expire-negative (time interval)
          Negative cache entries expire in this time interval.

     cache:size (number)
          Maximum cache size. When exceeded, oldest cache entries
          will be removed from cache.

     cmd:remote-completion (boolean)
          a boolean to control whether or not  lftp  uses  remote
          completion.

     cmd:verify-host (boolean)
          if  true, lftp resolves host name immediately in `open'
          command.  It is also possible to skip the check  for  a
          single  `open'  command  if  `&'  is given, or if ^Z is
          pressed during the check.

     cmd:verify-path (boolean)
          if true, lftp checks the path given  in  `cd'  command.
          It is also possible to skip the check for a single `cd'
          command if `&' is given, or if ^Z is pressed during the
          check.  Examples:
               set cmd:verify-path/hftp://* false
               cd directory &

     cmd:verify-path-cached (boolean)
          When  false,  `cd'  to  a directory known from cache as
          existent will succeed immediately.  Otherwise the veri-
          fication will depend on cmd:verify-path setting.

     color:use-color (boolean)
          when  true,  cls  command and completion output colored
          file listings according to color:dir-colors setting.

     color:dir-colors (string)
          file listing color description. By default the value of
          LS_COLORS  environment  variable  is  used. See dircol-
          ors(1).

     dns:SRV-query (boolean)
          query for SRV records and use  them  before  gethostby-
          name.  The  SRV  records  are  only used if port is not
          explicitly specified. See RFC2052 for details.

     dns:cache-enable (boolean)
          enable DNS cache. If it is off, lftp resolves host name
          each time it reconnects.

     dns:cache-expire (time interval)
          time to live for DNS cache entries. It has format <num-
          ber><unit>+, e.g.  1d12h30m5s or just 36h.  To  disable
          expiration, set it to `inf' or `never'.

     dns:cache-size (number)
          maximum number of DNS cache entries.

     dns:fatal-timeout (time interval)
          limit  the  time  for  DNS  queries.  If  DNS server is
          unavailable too long, lftp will fail to resolve a given
          host name. Set to `never' to disable.

     dns:order (list of protocol names)
          sets  the  order  of  DNS  queries.  Default is ``inet6
          inet'' which means first look up address in inet6  fam-
          ily,  then inet and use them in that order.  To disable
          inet6 (AAAA) lookup, set this variable to ``inet''.

     dns:use-fork (boolean)
          if true, lftp will fork before resolving host  address.
          Default is true.

     dns:max-retries (number)
          If  zero, there is no limit on the number of times lftp
          will try to lookup an address.  If > 0, lftp  will  try
          only this number of times to look up an address of each
          address family in dns:order.

     file:charset (string)
          local character set. It is set from current locale ini-
          tially.

     fish:charset (string)
          the  character  set  used  by  fish server in requests,
          replies and file  listings.   Default  is  empty  which
          means the same as local.

     fish:connect-program (string)
          the  program to use for connecting to remote server. It
          should support `-l' option for user name, `-p' for port
          number.  Default  is  `ssh  -a  -x'.  You can set it to
          `rsh', for example.

     fish:shell (string)
          use specified shell on server side. Default is /bin/sh.
          On  some systems, /bin/sh exits when doing cd to a non-
          existent directory. lftp can handle that but it has  to
          reconnect. Set it to /bin/bash for such systems if bash
          is installed.

     ftp:acct (string)
          Send this string  in  ACCT  command  after  login.  The
          result  is  ignored.   The closure for this setting has
          format user@host.

     ftp:anon-pass (string)
          sets the password used for anonymous ftp access authen-
          tication.  Default is "-name@", where name is the user-
          name of the user running the program.

     ftp:anon-user (string)
          sets the  user  name  used  for  anonymous  ftp  access
          authentication.  Default is "anonymous".

     ftp:auto-sync-mode (regex)
          if  first  server  message  matches this regex, turn on
          sync mode for that host.

     ftp:charset (string)
          the character set  used  by  ftp  server  in  requests,
          replies  and  file  listings.   Default  is empty which
          means the same as local. This setting is only used when
          the server does not support UTF8.

     ftp:client (string)
          the  name  of  ftp client to send with CLNT command, if
          supported by server.  If it is empty, then no CLNT com-
          mand will be sent.

     ftp:bind-data-socket (boolean)
          bind data socket to the interface of control connection
          (in passive mode).  Default is true, exception  is  the
          loopback interface.

     ftp:fix-pasv-address (boolean)
          if  true,  lftp will try to correct address returned by
          server for PASV command in case when server address  is
          in  public  network  and PASV returns an address from a
          private network. In this  case  lftp  would  substitute
          server address instead of the one returned by PASV com-
          mand, port number would not  be  changed.   Default  is
          true.

     ftp:fxp-passive-source (boolean)
          if  true,  lftp will try to set up source ftp server in
          passive mode first, otherwise destination one. If first
          attempt fails, lftp tries to set them up the other way.
          If the other disposition fails too, lftp falls back  to
          plain copy. See also ftp:use-fxp.

     ftp:home (string)
          Initial  directory. Default is empty string which means
          auto. Set this to `/' if you don't like the look of %2F
          in  ftp  URLs.  The closure for this setting has format
          user@host.

     ftp:ignore-pasv-address (boolean)
          If true, lftp uses control connection  address  instead
          of  the one returned in PASV reply for data connection.
          This can be useful for broken NATs.  Default is  false.

     ftp:list-empty-ok (boolean)
          if  set to false, empty lists from LIST command will be
          treated as incorrect, and another method (NLST) will be
          used.

     ftp:list-options (string)
          sets options which are always appended to LIST command.
          It can be useful to set this to `-a' if server does not
          show  dot (hidden) files by default.  Default is empty.

     ftp:nop-interval (seconds)
          delay between NOOP commands when downloading tail of  a
          file. This is useful for ftp servers which send "Trans-
          fer complete" message before flushing data transfer. In
          such  cases  NOOP commands can prevent connection time-
          out.

     ftp:passive-mode (boolean)
          sets passive ftp mode. This can be useful  if  you  are
          behind  a  firewall  or  a dumb masquerading router. In
          passive mode lftp uses PASV command, not the PORT  com-
          mand which is used in active mode. In passive mode lftp
          itself makes the data  connection  to  the  server;  in
          active mode the server connects to lftp for data trans-
          fer. Passive mode is the default.

     ftp:port-ipv4 (ipv4 address)
          specifies an IPv4 address to send  with  PORT  command.
          Default  is  empty  which  means to send the address of
          local end of control connection.

     ftp:port-range (from-to)
          allowed port range for active mode.  Format is min-max,
          or  `full'  or  `any'  to indicate any port. Default is
          `full'.

     ftp:prefer-epsv (boolean)
          use EPSV as preferred passive mode. Default is `false'.

     ftp:proxy (URL)
          specifies  ftp proxy to use.  To disable proxy set this
          to empty string. Note that it is  an  ftp  proxy  which
          uses  ftp protocol, not ftp over http. Default value is
          taken from environment variable ftp_proxy if it  starts
          with ``ftp://''. If your ftp proxy requires authentica-
          tion, specify user name and password in  the  URL.   If
          ftp:proxy  starts  with http:// then hftp protocol (ftp
          over http proxy) is used instead of ftp  automatically.

     ftp:proxy-auth-type (string)
          When      set     to     ``joined'',     lftp     sends
          ``user@proxy_user@ftp.example.org''  as  user  name  to
          proxy, and ``password@proxy_password'' as password.

          When     set    to    ``joined-acct'',    lftp    sends
          ``user@ftp.example.org  proxy_user''  (with  space)  as
          user  name to proxy. The site password is sent as usual
          and the proxy password is  expected  in  the  following
          ACCT command.

          When  set  to ``open'', lftp first sends proxy user and
          proxy password and then ``OPEN  ftp.example.org''  fol-
          lowed by ``USER user''.  The site password is then sent
          as usual.

          When set to ``user'' (default), lftp first sends  proxy
          user  and  proxy  password  and  then  ``user@ftp.exam-
          ple.org'' as user name.  The site password is then sent
          as usual.

          When  set  to  ``proxy-user@host'',  lftp  first  sends
          ``USER proxy_user@ftp.example.org'', then  proxy  pass-
          word.  The  site  user  and  password  are then sent as
          usual.

     ftp:rest-list (boolean)
          allow usage of REST command before LIST  command.  This
          might  be  useful  for  large directories, but some ftp
          servers silently ignore REST before LIST.

     ftp:rest-stor (boolean)
          if false, lftp will not try to use  REST  before  STOR.
          This can be useful for some buggy servers which corrupt
          (fill with zeros) the file if REST followed by STOR  is
          used.

     ftp:retry-530 (regex)
          Retry  on  server  reply  530  for PASS command if text
          matches this regular expression.  This  setting  should
          be  useful  to  distinguish  between  overloaded server
          (temporary condition) and incorrect password (permanent
          condition).

     ftp:retry-530-anonymous (regex)
          Additional regular expression for anonymous login, like
          ftp:retry-530.

     ftp:site-group (string)
          Send this string in SITE GROUP command after login. The
          result  is  ignored.   The closure for this setting has
          format user@host.

     ftp:skey-allow (boolean)
          allow sending skey/opie reply if server appears to sup-
          port it. On by default.

     ftp:skey-force (boolean)
          do  not  send plain text password over the network, use
          skey/opie  instead.  If  skey/opie  is  not  available,
          assume failed login. Off by default.

     ftp:ssl-allow (boolean)
          if  true,  try  to  negotiate  SSL  connection with ftp
          server for non-anonymous access. Default is true.  This
          and  other  ssl settings are only available if lftp was
          compiled with an ssl/tls library.

     ftp:ssl-data-use-keys (boolean)
          if true, lftp loads  ssl:key-file  for  protected  data
          connection too. When false, it does not, and the server
          can match data and control connections by  session  ID.
          Default is true.

     ftp:ssl-force (boolean)
          if  true,  refuse to send password in clear when server
          does not support SSL.  Default is false.

     ftp:ssl-protect-data (boolean)
          if true, request ssl  connection  for  data  transfers.
          This  is cpu-intensive but provides privacy. Default is
          false.

     ftp:ssl-protect-fxp (boolean)
          if true,  request  ssl  connection  for  data  transfer
          between  two ftp servers in FXP mode. CPSV or SSCN com-
          mand will be used in that case. If ssl connection fails
          for  some reason, lftp would try unprotected FXP trans-
          fer unless ftp:ssl-force is set  for  any  of  the  two
          servers. Default is false.

     ftp:ssl-protect-list (boolean)
          if  true,  request  ssl connection for file list trans-
          fers. Default is true.

     ftp:ssl-use-ccc (boolean)
          if true, lftp would issue CCC command after logon, thus
          disable ssl protection layer on control connection.

     ftp:stat-interval (time interval)
          interval between STAT commands. Default is 1 second.

     ftp:sync-mode (boolean)
          if  true, lftp will send one command at a time and wait
          for response. This might be useful if you are  using  a
          buggy  ftp server or router. When it is off, lftp sends
          a pack of commands and waits for responses - it  speeds
          up  operation  when  round  trip  time  is significant.
          Unfortunately it does not work with all ftp servers and
          some  routers  have  troubles  with  it, so it is on by
          default.

     ftp:timezone (string)
          Assume this timezone for time in listings  returned  by
          LIST   command.    This   setting  can  be  GMT  offset
          [+|-]HH[:MM[:SS]]  or  any   valid   TZ   value   (e.g.
          Europe/Moscow    or   MSK-3MSD,M3.5.0,M10.5.0/3).   The
          default is GMT.  Set it to an  empty  value  to  assume
          local timezone specified by environment variable TZ.

     ftp:trust-feat (string)
          When  true,  assume that FEAT returned data are correct
          and don't use common  protocol  extensions  like  SIZE,
          MDTM, REST if they are not listed.  Default is false.

     ftp:use-abor (boolean)
          if  false,  lftp  does not send ABOR command but closes
          data connection immediately.

     ftp:use-allo (boolean)
          when true (default), lftp  sends  ALLO  command  before
          uploading a file.

     ftp:use-feat (boolean)
          when  true  (default), lftp uses FEAT command to deter-
          mine extended features of ftp server.

     ftp:use-fxp (boolean)
          if true, lftp will try  to  set  up  direct  connection
          between two ftp servers.

     ftp:use-hftp (boolean)
          when  ftp:proxy  points  to an http proxy, this setting
          selects hftp method (GET, HEAD) when true, and  CONNECT
          method when false. Default is true.

     ftp:lang (boolean)
          the  language  selected with LANG command, if supported
          as indicated by FEAT response. Default is  empty  which
          means server default.

     ftp:use-mdtm (boolean)
          when  true  (default), lftp uses MDTM command to deter-
          mine file modification time.

     ftp:use-mdtm-overloaded (boolean)
          when true, lftp uses two argument MDTM command  to  set
          file  modification  time  on uploaded files. Default is
          false.

     ftp:use-site-idle (boolean)
          when true, lftp sends `SITE IDLE' command with net:idle
          argument. Default is false.

     ftp:use-site-utime (boolean)
          when  true,  lftp sends 5-argument `SITE UTIME' command
          to  set  file  modification  time  on  uploaded  files.
          Default is true.

     ftp:use-site-utime2 (boolean)
          when  true,  lftp sends 2-argument `SITE UTIME' command
          to  set  file  modification  time  on  uploaded  files.
          Default  is  true.   If 5-argument `SITE UTIME' is also
          enabled, 2-argument command is tried first.

     ftp:use-size (boolean)
          when true (default), lftp uses SIZE command  to  deter-
          mine file size.

     ftp:use-stat (boolean)
          if  true,  lftp sends STAT command in FXP mode transfer
          to know how much data has been  transferred.  See  also
          ftp:stat-interval. Default is true.

     ftp:use-stat-for-list (boolean)
          when  true,  lftp uses STAT instead of LIST command. By
          default `.' is used as STAT argument. Using STAT,  lftp
          avoids  creating data connection for directory listing.
          Some servers require  special  options  for  STAT,  use
          ftp:list-options to specify them (e.g. -la).

     ftp:use-telnet-iac (boolean)
          when  true  (default), lftp uses TELNET IAC command and
          follows TELNET protocol as specified  in  RFC959.  When
          false, it does not follow TELNET protocol and thus does
          not double 255 (0xFF, 0377) character and does not pre-
          fix ABOR and STAT commands with TELNET IP+SYNCH signal.

     ftp:use-quit (boolean)
          if true, lftp sends QUIT before disconnecting from  ftp
          server. Default is true.

     ftp:verify-address (boolean)
          verify  that  data  connection  comes  from the network
          address of control connection peer. This  can  possibly
          prevent data connection spoofing which can lead to data
          corruption. Unfortunately, this can  fail  for  certain
          ftp  servers with several network interfaces, when they
          do not set outgoing address on data socket,  so  it  is
          disabled by default.

     ftp:verify-port (boolean)
          verify  that  data connection has port 20 (ftp-data) on
          its remote end.  This can possibly prevent data connec-
          tion  spoofing  by users of remote host. Unfortunately,
          too many windows and even unix ftp  servers  forget  to
          set  proper port on data connection, thus this check is
          off by default.

     ftp:web-mode (boolean)
          disconnect after closing data connection. This  can  be
          useful  for  totally  broken  ftp  servers.  Default is
          false.

     ftps:initial-prot (string)
          specifies initial PROT setting  for  FTPS  connections.
          Should  be  one  of:  C,  S, E, P, or empty. Default is
          empty which means unknown, so that lftp will  use  PROT
          command  unconditionally.  If PROT command turns out to
          be unsupported, then Clear mode would be assumed.

     hftp:cache (boolean)
          allow server/proxy side caching for ftp-over-http  pro-
          tocol.

     hftp:cache-control (string)
          specify corresponding HTTP request header.

     hftp:proxy (URL)
          specifies http proxy for ftp-over-http protocol (hftp).
          The protocol hftp cannot work  without  a  http  proxy,
          obviously.   Default  value  is  taken from environment
          variable ftp_proxy if it starts with ``http://'',  oth-
          erwise  from  environment variable http_proxy.  If your
          ftp proxy requires authentication,  specify  user  name
          and password in the URL.

     hftp:use-authorization (boolean)
          if  set  to off, lftp will send password as part of URL
          to the proxy. This may be  required  for  some  proxies
          (e.g.  M-soft). Default is on, and lftp will send pass-
          word as part of Authorization header.

     hftp:use-head (boolean)
          if set to off, lftp will try to use  `GET'  instead  of
          `HEAD' for hftp protocol.  While this is slower, it may
          allow lftp to work with some proxies which don't under-
          stand or mishandle ``HEAD ftp://'' requests.

     hftp:use-mkcol (boolean)
          if  set  to  off, lftp will try to use `PUT' instead of
          `MKCOL'  to  create  directories  with  hftp  protocol.
          Default is off.

     hftp:use-propfind (boolean)
          if  set  to off, lftp will not try to use `PROPFIND' to
          get directory contents with hftp protocol and use `GET'
          instead. Default is off.

     hftp:use-type (boolean)
          If  set  to  off,  lftp won't try to append `;type=' to
          URLs passed to proxy.  Some broken proxies don't handle
          it correctly. Default is on.

     http:accept, http:accept-charset, http:accept-language
          (string)
          specify corresponding HTTP request headers.

     http:authorization (string)
          the authorization to use by default, when  no  user  is
          specified.  The format is ``user:password''. Default is
          empty which means no authorization.

     http:cache (boolean)
          allow server/proxy side caching.

     http:cache-control (string)
          specify corresponding HTTP request header.

     http:cookie (string)
          send this cookie to server. A closure is useful here:
               set cookie/www.somehost.com "param=value"

     http:post-content-type (string)
          specifies value of Content-Type http request header for
          POST   method.   Default  is  ``application/x-www-form-
          urlencoded''.

     http:proxy (URL)
          specifies http proxy. It is used when lftp  works  over
          http protocol.  Default value is taken from environment
          variable http_proxy.  If your proxy requires  authenti-
          cation, specify user name and password in the URL.

     http:put-method (PUT or POST)
          specifies which http method to use on put.

     http:put-content-type (string)
          specifies value of Content-Type http request header for
          PUT method.

     http:referer (string)
          specifies value for Referer http request header. Single
          dot  `.'  expands  to current directory URL. Default is
          `.'. Set to empty string to disable Referer header.

     http:set-cookies (boolean)
          if true, lftp modifies http:cookie variables when  Set-
          Cookie header is received.

     http:use-mkcol (boolean)
          if  set  to  off, lftp will try to use `PUT' instead of
          `MKCOL'  to  create  directories  with  http  protocol.
          Default is on.

     http:use-propfind (boolean)
          if  set  to off, lftp will not try to use `PROPFIND' to
          get directory contents with http protocol and use `GET'
          instead. Default is on.

     http:user-agent (string)
          the  string  lftp  sends  in  User-Agent header of HTTP
          request.

     https:proxy (string)
          specifies https proxy.  Default  value  is  taken  from
          environment variable https_proxy.

     mirror:dereference (boolean)
          when  true,  mirror  will dereference symbolic links by
          default.   You  can  override  it  by  --no-dereference
          option. Default if false.

     mirror:exclude-regex (regex)
          specifies  default  exclusion pattern. You can override
          it by --include option.

     mirror:include-regex (regex)
          specifies default inclusion pattern. It  is  used  just
          after mirror:exclude-regex is applied. It is never used
          if mirror:exclude-regex is empty.

     mirror:order (list of patterns)
          specifies order of file transfers. E.g. setting this to
          "*.sfv  *.sum"  makes mirror to transfer files matching
          *.sfv first, then ones  matching  *.sum  and  then  all
          other  files. To process directories after other files,
          add "*/" to end of pattern list.

     mirror:parallel-directories (boolean)
          if true, mirror will start processing of several direc-
          tories  in parallel when it is in parallel mode. Other-
          wise, it will transfer files from  a  single  directory
          before moving to other directories.

     mirror:parallel-transfer-count (number)
          specifies   number  of  parallel  transfers  mirror  is
          allowed to start. Default is 1.  You  can  override  it
          with --parallel option.

     mirror:set-permissions (boolean)
          When  set  to  off,  mirror  won't try to copy file and
          directory permissions.  You can override it by  --perms
          option. Default is on.

     mirror:use-pget-n (number)
          specifies  -n  option for pget command used to transfer
          every single file under mirror. Default is 1 which dis-
          ables pget.

     module:path (string)
          colon  separated  list  of directories to look for mod-
          ules.  Can  be  initialized  by  environment   variable
          LFTP_MODULE_PATH. Default is `PKGLIBDIR/VERSION:PKGLIB-
          DIR'.

     net:connection-limit (number)
          maximum number of concurrent connections  to  the  same
          site. 0 means unlimited.

     net:connection-takeover (boolean)
          if  true,  foreground  connections  have  priority over
          background ones and can interrupt background  transfers
          to complete a foreground operation.

     net:idle (time interval)
          disconnect from server after this idle time. Default is
          3 minutes.

     net:limit-rate (bytes per second)
          limit transfer rate on data connection. 0 means  unlim-
          ited. You can specify two numbers separated by colon to
          limit download and upload rate separately.

     net:limit-max (bytes)
          limit accumulating of unused limit-rate. 0 means  twice
          of limit-rate.

     net:limit-total-rate (bytes per second)
          limit  transfer rate of all connections in sum. 0 means
          unlimited. You can specify  two  numbers  separated  by
          colon  to  limit  download  and upload rate separately.
          Note that sockets have receive buffers  on  them,  this
          can  lead  to  network  link load higher than this rate
          limit just after transfer beginning. You can try to set
          net:socket-buffer  to  relatively  small value to avoid
          this.

     net:limit-total-max (bytes)
          limit accumulating of unused limit-total-rate. 0  means
          twice of limit-total-rate.

     net:max-retries (number)
          the  maximum  number of sequential retries of an opera-
          tion without success.  0 means unlimited.

     net:no-proxy (string)
          contains comma separated  list  of  domains  for  which
          proxy  should not be used.  Default is taken from envi-
          ronment variable no_proxy.

     net:persist-retries (number)
          ignore this number of hard errors. Useful to  login  to
          buggy  ftp  servers  which  reply 5xx when there is too
          many users.

     net:reconnect-interval-base (seconds)
          sets the base minimal time between  reconnects.  Actual
          interval  depends  on net:reconnect-interval-multiplier
          and number of attempts to perform an operation.

     net:reconnect-interval-max (seconds)
          sets maximum reconnect interval. When current  interval
          after  multiplication  by net:reconnect-interval-multi-
          plier reachs this value (or exceeds it),  it  is  reset
          back to net:reconnect-interval-base.

     net:reconnect-interval-multiplier (real number)
          sets  multiplier  by  which base interval is multiplied
          each time new attempt to perform  an  operation  fails.
          When  the  interval reachs maximum, it is reset to base
          value. See net:reconnect-interval-base  and  net:recon-
          nect-interval-max.

     net:socket-bind-ipv4 (ipv4 address)
          bind all IPv4 sockets to specified address. This can be
          useful to select a specific network interface  to  use.
          Default  is empty which means not to bind IPv4 sockets,
          operating system will choose an  address  automatically
          using routing table.

     net:socket-bind-ipv6 (ipv6 address)
          the same for IPv6 sockets.

     net:socket-buffer (bytes)
          use  given  size  for  SO_SNDBUF  and  SO_RCVBUF socket
          options. 0 means system default.

     net:socket-maxseg (bytes)
          use given size for TCP_MAXSEG socket  option.  Not  all
          operating  systems support this option, but linux does.

     net:timeout (time interval)
          sets the network protocol timeout.

     pget:default-n (number)
          default number of chunks to split the file to in  pget.

     pget:save-status (time interval)
          save pget transfer status this often. Set to `never' to
          disable saving of the status file.  The status is saved
          to a file with suffix .lftp-pget-status.

     sftp:charset (string)
          the character set used by sftp server in file names and
          file listings.  Default is empty which means  the  same
          as  local.  This setting is only used for sftp protocol
          version prior to 4. Version  4  and  later  always  use
          UTF-8.

     sftp:connect-program (string)
          the  program to use for connecting to remote server. It
          should support `-l' option for user name, `-p' for port
          number.  Default  is  `ssh  -a  -x'.  You can set it to
          `rsh', for example.

     sftp:max-packets-in-flight (number)
          The maximum number of unreplied packets in  flight.  If
          round  trip  time  is  significant, you should increase
          this and size-read/size-write. Default is 16.

     sftp:protocol-version (number)
          The protocol number to negotiate.  Default  is  4.  The
          actual protocol version used depends on server.

     sftp:server-program (string)
          The  server  program  implementing SFTP protocol. If it
          does not contain a slash `/', it is considered  a  ssh2
          subsystem  and -s option is used when starting connect-
          program.  Default is `sftp'. You can use rsh as  trans-
          port level protocol like this:
               set sftp:connect-program rsh
               set sftp:server-program /usr/libexec/openssh/sftp-server
          Similarly you can run sftp over ssh1.

     sftp:size-read (number)
          Block size for reading. Default is 0x8000.

     sftp:size-write (number)
          Block size for writing. Default is 0x8000.

     ssl:ca-file (path to file)
          use  specified  file  as Certificate Authority certifi-
          cate.

     ssl:ca-path (path to directory)
          use specified directory as Certificate  Authority  cer-
          tificate repository (OpenSSL only).

     ssl:check-hostname (boolean)
          when true, lftp checks if the host name used to connect
          to the server corresponds to the host name in its  cer-
          tificate.

     ssl:crl-file (path to file)
          use  specified file as Certificate Revocation List cer-
          tificate.

     ssl:crl-path (path to directory)
          use specified directory as Certificate Revocation  List
          certificate repository (OpenSSL only).

     ssl:key-file (path to file)
          use specified file as your private key.

     ssl:cert-file (path to file)
          use specified file as your certificate.

     ssl:verify-certificate (boolean)
          if  set  to yes, then verify server's certificate to be
          signed by a known Certificate Authority and not  be  on
          Certificate Revocation List.

     torrent:ip (ipv4 address)
          IP address for the tracker. Specify it if you are using
          an http proxy.

     torrent:max-peers (number)
          maximum number of peers for a torrent. Least used peers
          are removed to maintain this limit.

     torrent:port-range (from-to)
          port  range  to accept connections on. A single port is
          selected when a torrent starts.

     torrent:seed-max-time (time interval)
          maximum seed time. After this period of time a complete
          torrent  shuts  down  independently of ratio. It can be
          set to infinity if needed.

     torrent:seed-min-peers (number)
          minimum number of peers when the torrent  is  complete.
          If there are less, new peers are actively searched for.

     torrent:stop-on-ratio (real number)
          torrent stops when it's complete and ratio reached this
          number.

     xfer:clobber (boolean)
          if this setting is off, get commands will not overwrite
          existing files and generate an error  instead.  Default
          is on.

     xfer:destination-directory (path or URL to directory)
          This  setting  is used as default -O option for get and
          mget commands.  Default is empty, which  means  current
          directory (no -O option).

     xfer:full-disk-fatal (boolean)
          when  true,  lftp  aborts a thansfer if it cannot write
          target file because of full disk or quota; when  false,
          lftp waits for disk space to be freed.

     xfer:eta-period (seconds)
          the  period  over which weighted average rate is calcu-
          lated to produce ETA.

     xfer:eta-terse (boolean)
          show terse ETA (only  high  order  parts).  Default  is
          true.

     xfer:log (boolean)
          when true, lftp logs transfers to ~/.lftp/transfer_log.

     xfer:max-redirections (number)
          maximum number of redirections. This can be useful  for
          downloading over HTTP.  0 prohibits redirections.

     xfer:rate-period (seconds)
          the  period  over which weighted average rate is calcu-
          lated to be shown.


     The name of a variable can be abbreviated unless it  becomes
     ambiguous. The prefix before `:' can be omitted too. You can
     set one variable several times for different  closures,  and
     thus you can get a particular settings for particular state.
     The closure is to be specified after variable name separated
     with slash `/'.

     The  closure  for  `dns:',  `net:', `ftp:', `http:', `hftp:'
     domain variables is currently just  the  host  name  as  you
     specify it in the `open' command (with some exceptions where
     closure is  meaningless,  e.g.  dns:cache-size).   For  some
     `cmd:'  domain  variables the closure is current URL without
     path.  For other variables it is  not  currently  used.  See
     examples in the sample lftp.conf.

     Certain  commands  and settings take a time interval parame-
     ter. It has the format Nx[Nx...], where  N  is  time  amount
     (floating  point) and x is time unit: d - days, h - hours, m
     - minutes, s - seconds. Default unit is second.  E.g.  5h30m
     or  5.5h.   Also  the  interval  can  be  `infinity', `inf',
     `never', `forever' - it means infinite interval. E.g. `sleep
     forever' or `set dns:cache-expire never'.

     Boolean  settings  can be one of (true, on, yes, 1, +) for a
     True value or one of (false, off, no,  0,  -)  for  a  False
     value.

     Integer  settings can have a suffix: k - kibi, m - mebi, g -
     gigi, etc.  They can also have a prefix: 0  -  octal,  0x  -
     hexadecimal.


  FTP asynchronous mode (pipelining)
     Lftp can speed up ftp operations by sending several commands
     at once and then checking all the responses.  See  ftp:sync-
     mode  variable.  Sometimes  this  does  not  work, thus syn-
     chronous mode is the default.  You  can  try  to  turn  syn-
     chronous  mode  off and see if it works for you. It is known
     that some network software dealing with address  translation
     works incorrectly in the case of several FTP commands in one
     network packet.

     RFC959 says:  ``The  user-process  sending  another  command
     before  the completion reply would be in violation of proto-
     col; but server-FTP processes should queue any commands that
     arrive  while  a  preceding  command is in progress''. Also,
     RFC1123 says: ``Implementors MUST NOT assume any  correspon-
     dence  between READ boundaries on the control connection and
     the Telnet EOL sequences (CR LF).'' and ``a single READ from
     the  control  connection  may include more than one FTP com-
     mand''.

     So it must be safe to send several commands at  once,  which
     speeds  up  operation  a lot and seems to work with all Unix
     and VMS based  ftp  servers.  Unfortunately,  windows  based
     servers  often cannot handle several commands in one packet,
     and so cannot some broken routers.


OPTIONS
     -d   Switch on debugging mode

     -e commands
          Execute given commands and don't exit.

     -p port
          Use the given port to connect

     -u user[,pass]
          Use the given username and password to connect

     -f script_file
          Execute commands in the file and exit

     -c commands
          Execute the given commands and exit.  Commands  can  be
          separated with a semicolon, `&&' or `||'.


ENVIRONMENT VARIABLES
     The following environment variables are processed by lftp:

     HOME Used for (local) tilde (`~') expansion

     SHELL
          Used by the ! command to determine the shell to run.

     PAGER
          This should be the name of the pager to use.  It's used
          by the more and zmore commands.

     http_proxy, https_proxy
          Used  to  set  initial   http:proxy,   hftp:proxy   and
          https:proxy variables.

     ftp_proxy
          Used  to set initial ftp:proxy or hftp:proxy variables,
          depending on URL  protocol  used  in  this  environment
          variable.

     no_proxy
          Used to set initial net:no-proxy variable.

     LFTP_MODULE_PATH
          Used to set initial module:path variable.

     LFTP_HOME
          Used  to locate the directory that stores user-specific
          configuration files.  If unset, ~/.lftp will be used.

     LS_COLORS
          used to set initial color:dir-colors variable.


FILES
     /etc/lftp.conf
          system-wide startup file. Actual  location  depends  on
          --sysconfdir  configure  option. It is /etc when prefix
          is /usr, /usr/local/etc by default.


     ~/.lftp/rc, ~/.lftprc
          These  files  are  executed  on  lftp   startup   after
          /etc/lftp.conf.

     ~/.lftp/log
          The  file things are logged to when lftp moves into the
          background in nohup mode.

     ~/.lftp/transfer_log
          The file transfers are logged to when xfer:log  setting
          is set to `yes'.

     ~/.lftp/bookmarks
          The  file  is  used to store lftp's bookmarks.  See the
          bookmark command.

     ~/.lftp/cwd_history
          The file is used to store last working directories  for
          each site visited.

     ~/.netrc
          The file is consulted to get default login and password
          to ftp server.  Passwords are also searched here if  an
          URL with user name but with no password is used.


SEE ALSO
     ftpd(8), ftp(1)
     RFC854  (telnet), RFC959 (ftp), RFC1123, RFC1945 (http/1.0),
     RFC2052 (SRV RR), RFC2228 (ftp security extensions), RFC2389
     (ftp  FEAT),  RFC2428  (ftp/ipv6), RFC2518 (WebDAV), RFC2616
     (http/1.1), RFC2617 (http/1.1 authentication), RFC2640  (ftp
     i18n), RFC4217 (ftp over ssl).
     http://www.ietf.org/internet-drafts/draft-ietf-ftpext-
     mlst-16.txt (ftp extensions over RFC959),
     http://www.ietf.org/internet-drafts/draft-ietf-secsh-
     filexfer-10.txt (sftp).


AUTHOR
     Alexander V. Lukyanov
     lav@yars.free.net


ACKNOWLEDGMENTS
     This manual page was originally written by Christoph Lameter
     <clameter@debian.org>, for the Debian GNU/Linux system.  The
     page  was  improved  and updated later by Nicolas Lichtmaier
     <nick@Feedback.com.ar>,             James              Troup
     <J.J.Troup@comp.brad.ac.uk>   and   Alexander   V.  Lukyanov
     <lav@yars.free.net>.





                     Last change: 17 Nov 2009                   1