Create a logoff script/task for Mac OS X

Solution 1:

What do you mean by "logoff script"? If you mean "how to logoff current session from the terminal", then you can do this from any shell script or terminal:

osascript -e 'tell application "System Events" to log out'

If by "logoff script" you mean "a script that is executed when one logs off", then I invite you to read this nice post on that topic (with example scripts): http://www.bombich.com/mactips/scripts.html, or see the official documentation here: http://support.apple.com/kb/HT2420?viewlocale=en_US

Another very nice example: http://hints.macworld.com/article.php?story=2006081701162739