sh 有趣的bash陷阱机制

Posted 2021-05-06

#!/usr/bin/env bash
echo $$
#trap '' 2
#trap 'echo got SIGINT' 2
trap 'echo got SIGINT' SIGINT
while :; do
	echo 'still alive...'
	kill -2 $$
	sleep 1
done
#trap SIGINT