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Kill Parent and Children processes/threads by "kill -gid"
service(staff) 2014/11/19 14:29

List the group process by ps "-o" custom format command



Assume you are running a bash script which invokes lots of
sh child-threads e.g. "sh sleep 1234567"

%p == process id
%r == group process id
%c == command line (e.g. "sh" here)
%a == command line argument (e.g. "sleep 1234567" here)

代碼:

$ ps xf -o "%p %r %c %a"  | grep 1234567 | grep sleep

11966 11833 sh              sleep 1234567
11976 11833 sh              sleep 1234567
11986 11833 sh              sleep 1234567
11996 11833 sh              sleep 1234567
12106 11833 sh              sleep 1234567



Then, the 2nd colume "11833" is the group process"
You can just use kill -11833 (with single dash before group id)
to kill the all five child sleep process/threads.

Combine group-thread kill -group_process_id with xargs


代碼:


$ ps xf -o "%p %r %c %a"  | grep 1234567 | grep sleep | tail -1 | awk '{print $2}' |  xargs -Igid kill -- -gid


Note: The double dash is needed here for xargs + kill -gid


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