View source for Disowning terminal programs so that they dont exit when terminal is closed

[[Main Page|Home]] > [[CentOS]] > [[CentOS 6.x]] > [[Server administration tips and tricks]] > [[Disowning terminal programs so that they dont exit when terminal is closed]]

Normally if we run program in background such as
<pre>
./program1 >/dev/null 2>&1 &
</pre>
and then exit terminal the program can continue running after terminal is closed.  However if we start program using
<pre>
./program1
</pre>
and then use 'Ctrl+Z' and 'bg &lt;n&gt;' to send it to background then it remains connected to terminal such that if terminal is closed a SIGHUP is sent to the program to terminate it.  To avoid this SIGHUP signal from being sent one can use 
<pre>
disown &lt;n&gt;
</pre>
where n is same as listed in jobs.  Or simple use '<tt>disown</tt>' to disown all associated jobs.  After disowning exiting the terminal wont send SIGHUP signal to process, allowing it to run until its formal completion.



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