Question

How do you terminate an ongoing process?

Hint:

To terminate a process in a Unix-like system: 1. Use{Ctrl+C} to stop a foreground process. 2. Use the{kill} command with the process ID (PID):{kill PID}.
3. Use{killall} to terminate all processes by name:{killall process\_name}.
4. Use{htop} or{top} for an interactive process viewer, then kill processes using F9.

Answer 1

To terminate an ongoing process in a Unix-like operating system (like Linux or macOS), you can use several methods, depending on how the process was started and the environment you are working in. Methods to Terminate a Process: 1. Using `Ctrl+C`: - This is the most common way to terminate a process running in the foreground in a terminal. It sends a SIGINT (Signal Interrupt) to the process, which causes it to terminate. 2. Using `kill` command: - You can use the `kill` command to send a signal to a process, usually to terminate it. - First, find the Process ID (PID) using the `ps` or `top` command, then use `kill`: \[ kill PID \] - To forcefully terminate a process, use: \[ kill -9 PID \] 3. Using `killall` command: - If you want to terminate all processes with a particular name, you can use the `killall` command: \[ \text{kill all process\_name} \] 4. Using `htop` or `top`: - In more advanced systems, you can use `htop` (a more interactive process viewer) to kill processes. Select the process and press F9 to kill it.
Example:
To terminate a process with PID 1234: \[ \texttt{kill 1234} \] To forcefully kill the same process: \[ \texttt{kill -9 1234} \]