I am trying to improve my command line skills and I have encountered a problem where I cannot kill a process. I type kill 2200
where 2200 is my PID and the process is not killed. After few minutes wait is still in the top
and ps aux
.
I have even tried typing it with sudo – no results.
Any ideas why it would be like that ?
EDIT
I have found a weird dependency, where fg
updates the processes list:
x@xxx:/etc/grub.d$ ps
PID TTY TIME CMD
1723 pts/0 00:00:00 bash
2200 pts/0 00:00:00 top
2202 pts/0 00:00:00 top
2258 pts/0 00:00:00 ps
x@xxx:/etc/grub.d$ fg
top
x@xxx:/etc/grub.d$ ps
PID TTY TIME CMD
1723 pts/0 00:00:00 bash
2200 pts/0 00:00:00 top
2620 pts/0 00:00:00 ps
x@xxx:/etc/grub.d$ fg
top
x@xxx:/etc/grub.d$ ps
PID TTY TIME CMD
1723 pts/0 00:00:00 bash
2621 pts/0 00:00:00 ps
Best Answer
Processes can ignore some signals. If you send SIGKILL it will not be able to ignore it (and neither catch it to do cleanups). Try:
Learn more by reading the manual page: