tmuxcopycmd

#! /bin/sh

TMUX_HIST=/tmp/tmux.history
MAX_CMD_LENGTH=500
OUTPUT_FILE=/tmp/tmuxcopycmd-result

if [ "$1" = "--help" ] || [ "$1" = "-h" ] || [ "$1" = "help" ]; then
  cat << EOF
$ tmuxcopycmd <++>
<++>

Parameters:
  \$1: <++>
  [\$1]: <++>

Example:
  $ tmuxcopycmd <++>
EOF
  exit
fi

command -v perl >/dev/null || { echo "perl is not installed"; exit 1; }
command -v tac >/dev/null || { echo "tac is not installed"; exit 1; }

user_choose_cmd() {
  # grep -P "^ .*? " $TMUX_HIST  | grep -v "$" | perl -pe "s|^ (.*?)  |\$1 |" | dmenu # perl would reformat the prompt
  grep -P "^ .*? " $TMUX_HIST | tac | dmenu
}

LINE="$(user_choose_cmd)"
[ -z "$LINE" ] && exit 1

# get most recent exec of line, get it's output (match till next prompt, which is cut of w/ head)
tac $TMUX_HIST | grep "$LINE" -m 1 -B $MAX_CMD_LENGTH | tac # | grep -P "^ .*? " -m 2 -B $MAX_CMD_LENGTH | head -n -1 | tee $OUTPUT_FILE

# replace special chars, for better pasting?
xclip -sel clipboard $OUTPUT_FILE