I'm writing some automation scripts, in which I need to kill some processes.
Previously I would usually use
kill -9 pid to kill processes but once upon a time, I notice that when I used
kill -9 to kill some
tcpdump -i eth0 -w output.pcap
The captured packets were not put into
output.pcap and it was empty. But if I used
kill, it worked fine.
For some processes, like
./prog >> test_log, I'm afraid if I use
kill -9 to kill the processes the output won't get redirected to
I'm also afraid if I use
-9 the kill command may fail.
Can anyone tell me how to properly use
kill so that the killing doesn't cause problems with the output file and I'm able to kill the processes without issue?