killall

"killall" is a command-line tool found in Unix-like operating systems. It is used to terminate running processes by their names. The main purpose is to send a termination signal to all processes whose names match the provided argument. The command allows for killing processes by either their exact name or by using regular expressions. By default, killall sends the SIGTERM signal to the processes, which requests them to terminate gracefully. If needed, the default signal can be changed to a different one using options like -s or --signal. Killall provides various options to enhance its functionality, such as specifying a time delay before killing processes or restricting the command to only specific users. Additionally, it supports wildcard matches and can kill multiple processes at once. Although "kill" command can be used for killing processes individually, "killall" command provides a more convenient way to terminate multiple processes with similar names simultaneously.