运行并行进程，如果失败则退出所有进程 [英] Run parallel process and exit all if one fails

问题描述

我有这段代码，可以并行启动make t1，make t2和make t3.

I have this snippet of code, to start make t1 , make t2 and make t3 in parallel.

有没有办法在一个失败的情况下杀死其余的制造过程?例如，如果make t2失败，则脚本应杀死其他两个正在运行的脚本(make t1和make t3)并退出.

Is there a way to kill rest of the make processes when one fails? e.g, if make t2 fails, script should kill other 2 running (make t1 and make t3) and come out.

for ARG in '"t1" "t2" "t3"'
do
   cd ${ARG}
   make ${ARG} & pid=$!
   PID_LIST+=" $pid";
   cd -
done
trap "kill $PID_LIST" SIGINT
echo "Parallel makes have started $PID_LIST"
wait $PID_LIST

推荐答案

使用 GNU Parallel

parallel --halt now,fail=1 'cd {}; make {}' ::: t1 t2 t3

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