View source for HowTo Keep Processes Running After Logging Out Using: "setsid"

== HowTo Set The Session ID (SID) and Process Group ID (PGID) ==
The "'''setsid'''" command allows one to set a new "'''Session ID'''" ('''SID''') and "'''Process Group ID'''" ('''PGID''') for a given command. This can be quite <u>useful</u> when logging out from a '''shell''' environment and keeping a process up and running. Since the process is <u>running</u> in an entirely different "'''session'''", it should <u>not</u> be effected by the log out and '''shell''' termination sequence.


<div class="screen">
  <div class="screenTitle">''Command:'' "setsig"&nbsp;&nbsp;&nbsp;&nbsp;Example: Keep The "Find" Command Running After Logging Out.</div>
  <div class="userInput"><span class="prompt">[root@probe tmp]# </span><nowiki>setsid find / -name "rmsession.log" >| "/tmp/findresults" &</nowiki></div>
  <div class="userInput"><span class="prompt">[root@probe tmp]# </span><nowiki>exit</nowiki></div>
</div>

One can also use the "'''nohup'''", "'''disown'''" and "'''screen'''" commands to provide similar results.