What's the difference between SIGKILL and SIGSTOP?
Solution 1:
As is found on Wikipedia
SIGKILL
The SIGKILL signal is sent to a process to cause it to terminate immediately. In contrast to SIGTERM and SIGINT, this signal cannot be caught or ignored, and the receiving process cannot perform any clean-up upon receiving this signal.
SIGSTOP
The SIGSTOP signal instructs the operating system to stop a process for later resumption.
Solution 2:
SIGKILL kills a process and cannot be caught
SIGTERM kills a process but can be caught to do a graceful exit
SIGSTOP suspends the process until you do a SIGCONT