Get a OS X Notification when a slow CLI command finishes

.zshrc

# Based on http://frantic.im/notify-on-completion and https://gist.github.com/jamesmacaulay/860763
# Notify on completion
function f_notifyme {
  LAST_EXIT_CODE=$?
  CMD=$(fc -ln -1)
  terminal-notifier -title "$CMD" -message "Status code: $LAST_EXIT_CODE" &
}

save_preexec_time() {
  export PREEXEC_CMD="$(history | tail -1 | sed 's/ *[0-9]* *//')"
  export PREEXEC_TIME=$(date +'%s')
}

check_long_running_command() {
  exitstatus=$?

  stop=$(date +'%s')
  start=${PREEXEC_TIME:-$stop}
  let elapsed=$stop-$start

  if [ $elapsed -gt 1 ]; then
    f_notifyme
  fi
  PREEXEC_TIME=
  PREEXEC_CMD=
}

autoload -Uz  add-zsh-hook

add-zsh-hook preexec save_preexec_time
add-zsh-hook precmd check_long_running_command

Prerequisites:

• zsh
• terminal-notifier: brew install terminal-notifier