NAME

watchdiff - repeat command and watch differences

SYNOPSIS

            

              
              
  watchdiff option -- command
OPTIONS:
  -r, --refresh:1     refresh screen count (default 1)
  -i, --interval=i    interval time in second (default 2)
  -c, --count=i       command repeat count (default 1000)
  -e, --exec=s        set executing commands
  -s, --silent        do not show same result
  -p, --plain         shortcut for --nodate --nonewline
  --[no-]date         show date at the beginning (default on)
  --[no-]newline      print newline result (default on)
  --[no-]clear        clear screen after output (default on)
  --diff=command      diff command used to compare result
  --unit=unit         comparison unit (word/letter/char/mecab)
  -V, --verbose       print diff control command (default off)
  -M, --mark          show diff mark (default off)
  -O, --old           show old data (default off)
  -C[#],--context=#   diff before/after context (default 2)
  -S, --scroll        set scroll region (default on)
  -h, --help          show help
  -v, --version       show version
            
          

VERSION

Version 4.41

EXAMPLES

            

              
              
watchdiff df
watchdiff --silent df
watchdiff --refresh 5 --noclear df
watchdiff ifconfig en0
watchdiff -sri1 -- netstat -sp ip
watchdiff -ps --diff=sdif netstat -sp ip
watchdiff -e uptime -e iostat -e df
watchdiff -pc18i10r0 date; say -v Alex Ramen is ready
watchdiff -sU2 du -h ~/Music
            
          

DESCRIPTION

Use ^C to terminate.

Basically watchdiff command expect the command output is small enough to fit within a terminal screen size. If the output is longer than the screen height, only the final part is shown.

Use -C# option if the output is large and you want to see modified part only.

OPTIONS

-C[context]

Show context lines before/after updated part. This option implies the --verbose option enabled. To explicitly disable it, specify the --no-verbose option.

-S, --[no-]scroll

Set the scroll area from the third line of the screen to the bottom edge. Default on.

AUTHOR

Kazumasa Utashiro

https://github.com/kaz-utashiro/sdif-tools

LICENSE

Copyright 2014-2025 Kazumasa Utashiro

This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself.

SEE ALSO

App::sdif

diff(1), cdif(1), sdif(1)