如何在bash shell脚本中的表中使用命令结果值

Question

when I run most shell commands they give results as tables

ex

$lsof -i :8080
COMMAND  PID              USER   FD   TYPE             DEVICE SIZE/OFF NODE NAME
java    7610 treinetic-macbook   50u  IPv6 0x49a7d04a92982f61      0t0  TCP 

If I want to use one of those results how can i do that in a shell script.

ex- think that i want to use PID value of above result.

kill -9 PID

Answer 1

您可以-t使lsof仅返回PID：

 kill -9 $(lsof -t -i :8080)