kill

Sends a signal to a process, usually related to stopping the process. All signals except for SIGKILL and SIGSTOP can be intercepted by the process to perform a clean exit. More information: https://manned.org/kill.1posix.

kill process_id

kill -l

kill -1|HUP process_id

kill -2|INT process_id

kill -9|KILL process_id

kill -17|STOP process_id

kill -SIGUSR1 -group_id