NAME

       fish_key_reader - explore what characters keyboard keys send

SYNOPSIS

       fish_key_reader [OPTIONS]

DESCRIPTION

       fish_key_reader  is used to explain how you would bind a certain key sequence. By default,
       it prints the bind command for one key sequence read interactively over standard input.

       If the character sequence matches a special key name (see bind  --key-names),   both  bind
       CHARS ... and bind -k KEYNAME ... usage will be shown. In verbose mode (enabled by passing
       --verbose), additional details about the characters received, such as  the  delay  between
       chars, are written to standard error.

       The following options are available:

       -c or --continuous
              Begins  a  session  where  multiple  key sequences can be inspected. By default the
              program exits after capturing a single key sequence.

       -V or --verbose
              Tells fish_key_reader to output timing information and explain the sequence in more
              detail.

       -h or --help
              Displays help about using this command.

       -v or --version
              Displays the current fish version and then exits.

USAGE NOTES

       In  verbose  mode,  the delay in milliseconds since the previous character was received is
       included in the diagnostic information written to standard error. This information may  be
       useful  to  determine  the optimal fish_escape_delay_ms setting or learn the amount of lag
       introduced by tools like ssh, mosh or tmux.

       fish_key_reader  intentionally  disables  handling   of   many   signals.   To   terminate
       fish_key_reader in --continuous mode do:

       • press Control+C twice, or

       • press Control+D twice, or

       • type exit, or

       • type quit

EXAMPLE

          > fish_key_reader
          Press a key:
          # press up-arrow
          bind \e\[A 'do something'

          > fish_key_reader --verbose
          Press a key:
          # press alt+enter
                     hex:   1B  char: \c[  (or \e)
          (  0.027 ms)  hex:    D  char: \cM  (or \r)
          bind \e\r 'do something'

COPYRIGHT

       2022, fish-shell developers