Provided by: dico_2.11-2build1_amd64 bug


       dico - GNU dictionary client program


       dico [-DHISamqtv] [-c STRING] [-d NAME] [-i DBNAME] [-k STRING] [-p SERVICE] [-s NAME] [-u
       NAME] [--autologin=NAME] [--client=STRING] [--database=NAME] [--dbs] [--help]
       [--host=SERVER] [--info=DBNAME] [--key=STRING] [--levdist=N] [--levenshtein-distance=N]
       [--match] [--noauth] [--nosasl] [--password=STRING] [--port=SERVICE] [--quiet] [--sasl]
       [--serverhelp] [--serverinfo] [--source-info] [--source=ADDR] [--strategies]
       [--strategy=NAME] [--time-stamp] [--transcript] [--user=NAME] [--verbose] [URL-or-WORD]

       dico -h

       dico --help

       dico --usage

       dico --version


       This manpage is a short description of GNU dico.  For  a  detailed  discussion,  including
       examples  and  usage  recommendations,  refer  to the GNU Dico Manual available in texinfo
       format.  If the info reader and GNU Dico documentation  are  properly  installed  on  your
       system, the command

           info dico

       should give you access to the complete manual.

       You  can  also  view  the  manual  using  the info mode in emacs(1), or find it in various
       formats online at


       If any discrepancies occur between this manpage and the GNU Dico Manual, the  later  shall
       be considered the authoritative source.


       Console-based utility for querying dictionary servers.  It has two operation modes.

       In  single  query  mode, dico performs a query, displays its result and exits immediately.
       This mode is enabled if a word or a URL was given in the command line.

       In interactive mode, dico enters a read-and-eval loop, in which it reads requests from the
       keyboard, performs the necessary searches, and displays obtained results on the screen.

       Upon  startup,  dico looks for initialization files named .dico in the current user's home
       directory, and the current working directory.  If found, these files are  read  in  order,
       and  their  contents  is  treated  as a sequence of commands, which are executed.  See the
       section COMMANDS, for a discussion of available commands.


   Server Selection
       -d, --database=NAME]fR
              Select database to search.

              Connect to this server.

       -p, --port=SERVICE
              Specify port to connect to.

              Set source address for TCP connections.

   Operation Modes
       -D, --dbs
              Show available databases.

       -H, --serverhelp
              Show server help.

       -I, --serverinfo
              Show information about the server.

       -S, --strategies
              Show available search strategies.

       -i, --info=DBNAME
              Show information about database DBNAME.

       --levdist, --levenshtein-distance=N
              Set maximum Levenshtein distance to N.

       -m, --match
              Match instead of define.

       -q, --quiet
              Do not print the normal dico welcome banner.

       -s, --strategy=NAME
              Select a strategy for matching.  Implies --match.

       -a, --noauth
              Disable authentication.

              Set the name of autologin file to use.

       -c, --client=STRING
              Additional text for client command.

       -k, --key, --password=STRING
              Set shared secret for authentication.

              Disable SASL authentication.

       --sasl Enable SASL authentication (default).

       -u, --user=NAME
              Set user name for authentication.

              Include source line information in the debugging output.

       -t, --transcript
              Enable session transcript.

              Include time stamp in the debugging output.

       -v, --verbose
              Increase debugging verbosity level.

   Other Options
       -V, --version
              Print program version.

       -h, --help
              Print a short summary of command line options.

              Display a short usage message.


       In interactive mode dico reads  commands  from  the  standard  input,  executes  them  and
       displays  results  on  the  standard  output.   If  the  standard  input is connected to a
       terminal, the readline and history facilities are enabled.

       The input syntax is designed so as to save you the maximum amount of typing.

       A line beginning with a # sign introduces a comment and is ignored.

       Typing quiestion mark alone shows a short usage summary.

       All commands begin with a command prefix, a single punctuation character used  to  tell  a
       command from a define or match request.  The default command prefix is a dot.

       Any input starting with a slash is a match request.  For example,


       will display all headwords matching the word sail in the currently selected database.

       Any  input not starting with / or command prefix is a definition request.  It is looked up
       using the defaault server and database settings,  and  the  result  is  displayed  on  the

       Dico  initialization  files have the same syntax, excepting that no command prefix is used
       by default.

       Available commands (without prefix) are summarized in the table below:

       autologin FILE
              Use FILE for authentication.  If FILE begins with ~/, this prefix is replaced  with
              the  name  of the current user home directory, followed by /.  The prefix ~USER/ is
              replaced with the home directory of USER.  This command is  mostly  useful  in  the
              initialization file.

              See the section AUTOLOGIN FILE, for a discussion of this feature.

       close  Close the existing connection.

       database [NAME]
              Without  argument,  display the currently selected database.  With argument, select
              the database NAME.

       distance [N]
              If the remote server supports xlev experimental capability, this command shows  the
              maximum Levenshtein distance.  With argument, it sets the distance.

       help   Displays  short command usage summary.  For convenience, a single question mark can
              be used instead of this command.

              Show command history.

       info [NAME]
              Display information about the database NAME, or the currently selected database, if
              used without arguments.

       ld     List databases.

       ls     List strategies.

       open HOST [PORT]
              Establish  connection  with  remote server HOST.  If given, use PORT instead of the
              default 2628.

       pager [COMMAND]
              Sets or displays external command used for paging output.

       prefix [CHAR]
              Without argument, shows the currently selected command prefix.  With argument, sets
              command prefix to the given value.

       prompt STRING
              Sets dico command line prompt.

       quiet yes|no
              Toggle the startup banner.  Useful in the initialization file.

       quit   Quit the dico shell.

       sasl [yes|no]
              Without  argument, show whether the SASL authentication is enabled.  With argument,
              enable or disable it.

       strategy [NAME]
              Without  argument,  display  the  currently  selected  matching  strateguy.    With
              argument, select the strategy NAME.

       transcript [yes|no]
              Enable or disable session transcript.  When the transcript is on, dico displays raw
              DICT commands and answers as  they  are  executed.   It  is  useful  for  debugging

              Used without arguments, this command shows current state of the transcript.

              Print program version.

              Print the copyright statement.


       After connecting to a remote server, dico checks if the server supports authentication and
       attempts to authenticate itself if so.  The authentication credentials are taken from  the
       following sources:

       1.     Command line options --user and --password.

       2.     URL given as a command line argument.

       3.     Autologin files.

       These  three  sources  are  consulted  in  that order, i.e., a user name supplied with the
       --user command line option takes precedence over the one found in  an  URL  and  over  any
       names supplied by autologin files.

       If,  after  consulting all these sources, the user name is established, while the password
       is not, the resulting action depends on whether the  standard  input  is  connected  to  a
       terminal.   If  it  is,  dico  will  ask  the  user  to  supply a password.  If it is not,
       authentication is aborted and connection to the server is closed.

       Some authentication  mechanisms  require  additional  credentials.   For  example,  GSSAPI
       authentication  requires  a  service  name.   These  credentials  can  be supplied only in
       autologin file.

       Autologin file is a plaintext file that contains authentication  information  for  various
       DICT servers.  At most two autologin files are consulted: first the session-specific file,
       if it is supplied by autologin command or by the --autologin command line option, next the
       default  file  .dicologin  in  the  user's  home directory.  The default autologin file is
       examined only if no matching record was found in the session-specific one.

       The file format is similar to that of .netrc.

       Empty lines and comments are ignored.  Comments are introduced by a pound sign.  Non-empty
       lines  constitute  statements.   Tokens in a statement are separated with spaces, tabs, or
       newlines.  A valid statement must begin with one of the following:

       machine NAME
              This statement contains parameters for authenticating on server NAME.

              This statement contains parameters for authenticating on any server, not explicitly
              listed  in  one  of  the  machine  statements.   There  can  be at most one default
              statement in autologin file.  Its exact location does not matter, it will always be
              matched after all explicit machine statements.

       The following clauses can follow:

       login NAME
              Supplies the user name for this server.

       password STRING
              Supplies the password for this server.

       noauth Do not perform authentication on this server.

       sasl   Enable SASL authentication.

       nosasl Disable SASL authentication.

       mechanisms LIST
              Declare acceptable SASL mechanisms.  The LIST argument is a comma-separated list of
              mechanism names, without intervening whitespace.  Multiple mechanisms  clauses  may
              be present, in which case the corresponding lists are concatenated.

       service NAME
              Declare  service  name,  for authentication methods that need it.  If this token is
              omitted, the default service name dico is used.

       realm NAME
              Declare realm for authentication.

       host NAME
              Set host name for this server.  By default, it is determined automatically.



       Complete GNU Dico manual: run info dico or use emacs(1) info mode to read it.

       Online copies of GNU Dico documentation in various formats can be found at:



       Sergey Poznyakoff


       Report bugs to <>.


       Copyright © 2008-2014 Sergey Poznyakoff
       License GPLv3+: GNU GPL version 3 or later <>
       This is free software: you are free to change and redistribute it.  There is NO  WARRANTY,
       to the extent permitted by law.