Canceling the script process--background process

Today we have a problem that cancels a running script, but the thread that the script is in the background is still running.

A simple test.

#!/bin/bashecho"Begin Test ... " (Sleep) & (Sleep) &(sleep  &waitecho"End Test ... "

While the script is still waiting to be returned, CTRL +c stops the script and finds that sleep in the background is unaffected.

Currently, we are going to get the process number PID of the main process, the parent process number of these background processes is the PID, which gets the thread number of the background process through the PID, thus killing these background threads.

Canceling the script process--background process