Question

求助，如何在shell里面设定命令执行超时

Answer 1

timeout()
{
        waitfor=3   ＃等3s 
        command=$*
        $command &
        commandpid=$!        

        ( sleep $waitfor ; kill -9 $commandpid  >/dev/null2>&1 )&         ＃后台运行sleep3s，然后kill自己pid

        watchdog=$!
        sleeppid=$PPID
        wait $commandpid >/dev/null2>&1        

        kill $sleeppid >/dev/null2>&1
}