When I want to kill a process using the pid in linux, its subprocess still existes. I hope to kill all process using one command.

CodePudding user response：

Suggesting command pkill -p PID pattern .

See more documentation here.

CodePudding user response：

Check out process groups: https://en.wikipedia.org/wiki/Process_group

Assuming you want to do this from a shell? If you do a kill and make the top process negative it does a killpg under the covers and sends the signal to all the processes in the group.