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</div> <!-- #EndLibraryItem --><h1> kill</h1>
<p>Stop a process from running, either via a signal or forced termination.</p>
<pre>Syntax
kill [-s <var>sigspec</var>] [-n <var>signum</var>] [-<var>sigspec</var>] <var>jobspec</var> or <var>pid</var>
kill -l [<var>exit_status</var>]
kill -l [<var>sigspec</var>]
Key
-l List the signal names
-s Send a specific signal
-n Send a specific signal number</pre>
<p>Send a signal specified by <var>sigspec</var> or <var>signum</var>
to the process named by job specification <var>jobspec</var> or process ID <var>pid</var>.
<var><br>
<br>
sigspec</var> is either a case-insensitive signal name such as <code>SIGINT</code> (with or without
the <code>SIG</code> prefix) or a signal number; <var>signum</var> is a signal
number.<br>
<br>
If <var>sigspec</var> is not present, <code>SIGTERM</code>
is used (Terminate). <br>
<br>
If any arguments are supplied when <samp>`-l'</samp> is given, the names of
the signals corresponding to the arguments are listed, and the return status
is zero. <var>exit_status</var> is a number specifying a signal number or the
exit status of a process terminated by a signal.<br>
<br>
The return status is true if at least one signal was successfully sent, or false
if an error occurs or an invalid option is encountered.</p>
<p><b>Examples</b></p>
<p>List the running process</p>
<pre>$ <b>ps</b>
PID TTY TIME CMD
1293 pts/5 00:00:00 MyProgram
</pre>
<p>Then Kill it</p>
<pre>$ <b>kill 1293</b>
[2]+ Terminated MyProgram
</pre>
<p><b><i> </i></b>To run a command and then kill it after 5 seconds:</p>
<p class="code"> <span class="code">$ my_command & sleep 5 <br>
</span> $ kill -0 $! && kill $!</p>
<p>kill is a bash built in command: <span class="code"> $ help kill </span></p>
<p><i>"Whom the gods love dies young" - Menander 300 BC </i><br>
<br>
<b> Related</b>:</p>
<p>ctrl+z - Suspend a program<br>
ctrl+c - Interrupt a program<br>
<a href="ps.html">ps</a> - List running processes (returns PID)<br>
jobs - List your own processes (returns Job No.)<br>
<a href="bg.html">bg</a> - Put a process in the background<br>
<a href="fg.html">fg</a> - Put a process in the foreground<br>
killall - kill processes by name <br>
<a href="pkill.html">pkill</a> - Stop processes from running<br>
Windows equivalent command: <a href="../term_tools/nt/pskill.html">pskill</a>- Stop a process from running</p>
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