The killall command is a Unix and Linux utility that allows you to send a signal to all processes with a specific name.
Here is the basic syntax for using the killall command:
killall [-signal] process_name
The -signal option is optional. If you do not specify a signal, killall will send the SIGTERM signal to the processes by default. The process_name argument is the name of the process to kill.
For example, to send the SIGTERM signal to all processes with the name sleep, you can use the following command:
killall sleep
This will send the SIGTERM signal to all processes with the name sleep, which will cause them to terminate.
You can specify a different signal using the -signal option.
For example, to send the SIGKILL signal to all processes with the name sleep, you can use the following command:
killall -SIGKILL sleep
This will send the SIGKILL signal to all processes with the name sleep, which will cause them to terminate immediately.
You can use the -i option to make killall prompt you for confirmation before sending the signal to each process.
For example:
killall -i sleep
This will prompt you for confirmation before sending the signal to each process with the name sleep.