Which command is used to stop a running process in Linux?

The command used to stop a running process in Linux is indeed represented by kill [PID]. This command sends a signal to the process identified by the Process ID (PID). By default, it sends the TERM signal, which requests the process to terminate gracefully.

Using kill is effective because it provides the flexibility to specify various signals, allowing users to control processes in different ways. For example, sending a SIGKILL signal will forcefully terminate a process without allowing it to clean up, which can be useful if the process is not responding.

Other commands mentioned, such as terminate, halt, or stop, are not standard commands used in Linux for stopping processes. Therefore, understanding the specific functions and signals associated with the kill command is crucial for managing processes effectively in a Linux environment.