Linux Shell Scripting Cookbook - Third Edition

How to do it...

1. The kill -l command will list the available signals:

        $ kill -l
        SIGHUP 2) SIGINT 3) SIGQUIT 4) SIGILL 5) SIGTRAP
        ...

2. Terminate the process:

        $ kill PROCESS_ID_LIST

The kill command issues a SIGTERM signal by default. The process ID list is specified with spaces for delimiters.

3. The -s option specifies the signal to be sent to the process:

        $ kill -s SIGNAL PID

The SIGNAL argument is either a signal name or a signal number. There are many signals available for different purposes. The most common ones are as follows:

• SIGHUP 1: Hangup detection on the death of the controlling process or terminal

• SIGINT 2: This is the signal emitted when Ctrl + C is pressed

• SIGKILL 9: This is the signal used to forcibly kill ...