Comments on: As Close to A Real Daemon As Bash Scripts Get

By: Anthony Bouch

Anthony Bouch — Wed, 23 Jan 2013 04:02:06 +0000

Excellent – thanks.

The only change I made was

start)
if [ -f $MY_PIDFILE ]; then
echo "Daemon is already running."
exit 0
fi
…

In cases where we want to be sure that there is only one instance of the daemon running.

By: Ken Butcher

Ken Butcher — Mon, 02 Jan 2012 18:56:36 +0000

So many people want to know how to write a daemon script but almost all the answers to their legitimate questions seem to be of the RTFM variety. It’s too bad that the folks who feel they must be so arrogant can’t be more helpful. You, sir, are an angel!

The three most important concepts regarding daemonizing (is that a real word?) are looping, backgrounding and detaching and they are often not discussed in other posts.

Thank you.

By: Nico de Wet

Nico de Wet — Tue, 11 Oct 2011 23:15:25 +0000

I was just busy daemonizing a script and noting a "TODO pid file" when I came across this. Thanks!

Just to note, your function must be called "payload", the post already says this, but it didn't sink in on localhost, so to speak.

By: apokalyptik

apokalyptik — Mon, 12 Oct 2009 17:37:06 +0000

awesome! thanks!

By: Ken Riley

Ken Riley — Mon, 12 Oct 2009 16:52:47 +0000

Thanks for the fantastic script! I've created a version that works on the Mac that's available here: http://www.nodots.com/mac-daemon-functions.sh In addition to the script, users will need to install proctools to get a Mac version of pgrep: $ sudo port install proctools Best regards, Ken