Shell - List / Kill all subprocesses of a process

pstree -ap <pid>

 

[pkill will send the specified signal (by default SIGTERM) to each process instead of listing them on stdout.] 

[-P, --parent ppid,...  Only match processes whose parent process ID is listed.]

 

-- from man pkill

 

pkill -9 -P <pid> (It only kills its currently running subprocesses, doesn't kill the process itself, so the left commands will start. Carefully us it!!!)

zzh@ZZHPC:~/aaa$ cat test_bash_shebang.sh
#!/bin/bash

echo 'sleep 500s'
sleep 500
echo 'sleep 300s'
sleep 300
zzh@ZZHPC:~/aaa$ ./test_bash_shebang.sh 
sleep 500s

 

zzh@ZZHPC:~$ psvgrep test_bash_shebang.sh
zzh         7356    5189  0 11:19 pts/0    00:00:00 /bin/bash ./test_bash_shebang.sh
zzh@ZZHPC:~$ pstree -ap 7356
test_bash_sheba,7356 ./test_bash_shebang.sh
  └─sleep,7357 500
zzh@ZZHPC:~$ pkill -9 -P 7356

'sleep 500' was killed, 'sleep 300' started:

zzh@ZZHPC:~/aaa$ ./test_bash_shebang.sh 
sleep 500s
./test_bash_shebang.sh: line 4:  7357 Killed                  sleep 500
sleep 300s

 

可以利用pstree列出所有子进程，然后用kill来杀。

用此方法杀完后，'sleep 300'没有执行。