Linux uses awk and xargs to end processes in batches

The awk and xargs commands in linux have always been a headache for me. Here first record an example of the combination of awk and xargs.

Assume the following processes are as follows.

root@master:/home/jxl/ascend_new/output/test_unit# ps -ef | grep start.sh
root         234       1  0 01:37 pts/1    00:00:00 /bin/bash start.sh
root         716       1  0 01:37 pts/1    00:00:00 /bin/bash start.sh
root        1225       1  0 01:37 pts/1    00:00:00 /bin/bash start.sh
root        1455       1  0 01:37 pts/1    00:00:00 /bin/bash start.sh
root        1701       1  0 01:37 pts/1    00:00:00 /bin/bash start.sh
root        1791       1  0 01:37 pts/1    00:00:00 /bin/bash start.sh
root        4238      17  0 01:43 pts/1    00:00:00 grep --color=auto start.sh

The requirement is that we delete the processes containing start.sh in batches, you can use the following command

ps -ef | grep start.sh | grep -v grep | awk '{print $2}' |  xargs kill

The specific steps of the above command are to filter through start.sh, then filter out items containing grep, awk finds the parameter of the second process number, and then pass in the kill command through xargs to delete.