获取后台执行的函数的pid [英] Get pid of function executed in background

问题描述

是否可以从函数本身获取在后台执行的函数的PID?

Is it possible to get PID of function executed in background from the function itself?

#!/bin/bash

Foo()
{
  echo PId=$$ #I want pid of process that executed the function!
}

echo Main PID=$$


Foo &  #execute function in background
echo SUBPID=$! #get the pid of last executed background process, in this case Foo

wait

推荐答案

我认为您想要这样做:

Foo()
{
   echo $PPID # pid of process that executed the function
}

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