Question

我有一个Shell脚本，可以在不打开新终端的情况下并行执行两个命令

我的脚本

#!/bin/sh

sudo command1 &
sudo command2

我需要一个Shell脚本，该脚本应在执行Shell脚本的终端中按cntl + c时终止

Answer 1

创建一个函数，以使用trap在退出时执行。注册分叉进程的进程ID，并在退出函数中终止该PID。

FORKED_PID=

# this function will be executed when the script is terminated for any reason
function finish() {
    # get the process id of the process with parent process id $FORKED_PID, and kill it
    sudo kill -9 `ps --ppid $FORKED_PID -o pid=`
}
# bind this function to the EXIT signal
trap finish EXIT

# run command1 with sudo
sudo command1 &
# get the process id from the previous command and put it in $FORKED_PID
FORKED_PID=$!
# run command2 with sudo
sudo command2

终止shell脚本后进程未终止

1 个答案: