![]() SIGKILL, as the name suggests, kills the process immediately. Now, what if a process does not respond to the SIGTERM signal, or is stuck in an endless loop and not releasing the resources? This is where SIGKILL comes in. It’s my go-to signal when I need to stop a process without risking data corruption or other complications. SIGTERM Pro Tip: SIGTERM respects the process’s right to clean up before terminating, making it the safest and most polite way to request a process termination.If you are wondering how to find the PID in the above example, please see our detailed article on How to find PID and PPID in Linux. If the process can catch this signal and has defined a clean exit routine, it will execute that before exiting. ![]() The kill command, without any specified signal, sends a SIGTERM signal to the process. Here’s a practical example: Let’s say a process with a Process ID (PID) of 1234 is running, and you want to stop it. It allows the process to catch the signal and manage its termination elegantly – saving data or finishing essential tasks. SIGTERM is more forceful than SIGINT but still gives a process the opportunity to perform clean-up tasks before it ends. SIGTERM, or Signal Terminate, is the default signal sent to a process to kill it. This flexibility means that if a process has a specific task to perform before it stops (like saving a file or releasing resources), it can catch the SIGINT signal, perform the task, and then terminate.
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