【macOS】2つ以上のプログラムを同時に実行し、Ctrl-Cで一括終了させるシェルスクリプトを作る紆余曲折

#!/usr/bin/env bash

fvm dart run build_runner watch --delete-conflicting-outputs &
pid1=$!

fvm dart run slang watch &
pid2=$!

trap 'kill $pid1 $pid2; wait $pid1 $pid2 2>/dev/null; exit' SIGINT SIGTERM

wait $pid1 $pid2

#!/usr/bin/env bash

# Watch for changes in code generation sources (build_runner, slang) and rebuild them
# This script is intended to be run in the background while developing

# Watch for changes in build_runner sources
fvm dart run build_runner watch --delete-conflicting-outputs &

# Watch for changes in slang sources
fvm dart run slang watch &

# Trap ctrl-c and interrupt signals to stop the background processes
function cleanup() {
  echo -e "\nStopping watchers..."
  pkill -g $$
  wait
  exit 0
}
trap cleanup SIGINT SIGTERM

# Keep the script alive to handle the signals
wait

#!/bin/bash

# Function to kill all background jobs on script exit or Ctrl+C
cleanup() {
    echo "Stopping all background processes..."
    pkill -P $$  # Kill all child processes of this script
    wait         # Wait for all processes to terminate
    exit 0
}

# Trap SIGINT (Ctrl+C) and call cleanup
trap cleanup SIGINT

# Run multiple processes in background
sleep 100 &
sleep 200 &
sleep 300 &

# Keep the script alive to handle Ctrl+C
wait

pkill -P $$  # Kill all child processes of this script

pkill -g $$

zsh: terminated  ./script.sh.