Script that kills all the childs of a parent PID

1. run script with ./parent.sh &

2. List processes ps -ef giohnny 11995 25 0 22:00 pts/0 00:00:00 -bash giohnny 11996 11995 0 22:00 pts/0 00:00:00 -bash giohnny 11997 11995 0 22:00 pts/0 00:00:00 -bash giohnny 11998 11995 0 22:00 pts/0 00:00:00 sleep infinity giohnny 11999 11996 0 22:00 pts/0 00:00:00 -bash giohnny 12000 11996 0 22:00 pts/0 00:00:00 sleep infinity giohnny 12001 11997 0 22:00 pts/0 00:00:00 sleep infinity giohnny 12002 11999 0 22:00 pts/0 00:00:00 sleep infinity

PID 11995 is the parent of 11996, 11997 and 11998 ----------- 1st itteration ----------- PID 11996 is the parent of 11999, 12000 PID 11997 is the parent of 12001 ----------- 2nd itteration ---------- PID 11999 is the parent of 12002 ----------- 3rd itteration ----------

3. run ./killall 111995

OUTPUT pids= 11996 11997 11998 ==> 1st itteration PID[1] = 11996 pids= 11999 12000 ChCh_list = 11999 12000 PID[2] = 11997 pids= 12001 ChCh_list = 11999 12000 12001 ==> the list to scan for the second itteration PID[3] = 11998 pids= Final list = 11996 11997 11998 11999 12000 12001 PID[1] = 11999 pids= 12002 ChCh_list = 12002 ==> the list to scan for the 3rd itteration PID[2] = 12000 pids= PID[3] = 12001 pids= Final list = 11996 11997 11998 11999 12000 12001 12002 ==> final list to kill PID[1] = 12002 pids= Kill all 11996 11997 11998 11999 12000 12001 12002 + parent = 11995