tmux-findpane

#!/bin/sh

# This script helps you find something if you have tons of open panes...
#
#
# $0 '[a]bcdef'

notthispane=$TMUX_PANE
if [ "$1" = "-a" ]; then
   notthispane=''
   shift
fi

if [ -z "$*" ]; then
   cat <<EOT
Usage:
  $0 <options> [arguments to grep to find something in any open tmux pane]"

Options:
   -a include the current pane (not included by default because you could just search backwards...)

e.g.
  $0 -Pi '[f]oo.*bar\d+'

  Tip:  The use of brackets around a single char avoids finding your own attempt at finding something,
        at until you start showing the found history in this pane.
EOT
   exit 1
fi

for pane in $( tmux list-panes -a|grep -Po '%\d+' ); do
    if [ -n "$notthispane" -a "$notthispane" = "$pane" ]; then
      continue
    fi

    if tmux capture-pane -S - -p -t $pane |grep "$@"; then
       echo ""
       echo  "------ Pane: $(tmux list-panes -a |grep -w $pane) ------"
    fi
done

If you find yourself with a lot of tmux window panes open, and you can't remember where you ran a particular command or had some output you needed to capture, you can use this to find it. Hope you find it useful.