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How to wait in bash for several subprocesses to finish, and return exit code !=0 when any subprocess ends with code !=0?（34个答案）
5天前关闭。
我希望我的shell脚本失败，如果一个特定的命令失败。但是在任何情况下，运行整个脚本。所以我想在命令的结尾使用return 1，我想"捕捉"，也许在结尾添加一个条件，如：if return 1; then exit 1。我有点搞不懂它应该是什么样子。

#!/bin/bash

command 1 

# I want THIS command to make the script fail. 
# It runs test and in parallel regex
command 2 &

# bash regex that HAS to run in parallel with command 2
regex='^ID *\| *([0-9]+)'
while ! [[ $(command 3) =~ $regex ]] && jobs -rp | awk 'END{exit(NR==0)}'
do
    sleep 1
done

...

# Final command for creation of a report 
# Script has to run this command also if command 2 fails
command 4