KILL

Posted On 2007-05-01 by FortyPoundHead
Keywords: Command Reference
Tags: Linux Commandline Linux
Views: 1493


Stop a process from running, either via a signal or forced termination.

SYNTAX
kill [-s sigspec] [-n signum] [-sigspec] jobspec or pid
kill -l [exit_status]

key
-l : List the signal names
-s : Send a specific signal
-n : Send a specific signal numberSend a signal specified by sigspec or signum to the process named by job specification jobspec or process ID pid.

sigspec is either a signal name such as SIGINT (with or without the SIG prefix) or a signal number; signum is a signal number.

If sigspec and signum are not present, SIGTERM is used (Terminate).

If any arguments are supplied when `-l'' is given, the names of the signals corresponding to the arguments are listed, and the return status is zero. exit_status is a number specifying a signal number or the exit status of a process terminated by a signal.

The return status is zero if at least one signal was successfully sent, or non-zero if an error occurs or an invalid option is encountered.


List the running process
$ ps
PID TTY TIME CMD
1293 pts/5 00:00:00 MyProgram

Then Kill it
$ kill 1293
[2]+ Terminated MyProgram

To run a command and then kill it after 5 seconds:

my_command & sleep 5
kill -0 $! && kill $!


About the Author

FortyPoundHead has posted a total of 1974 articles.


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