I know there is a Terminal plugin for quicksilver but I would invoke terminal commands which basically just runs in the background and never popups a terminal window. is that possible?
UPDATE:
I have the following code in my applescript but its giving me an error:
do shell script "/path/to/shell.sh blah"
error:
curses.setupterm()
_curses.error: setupterm: could not find terminfo database
Applescript is the simple solution, see: http://developer.apple.com/library/mac/#technotes/tn2002/tn2065.html
Sample:
Automator can also run shell scripts in the background.
If you are familiar with XCode, you can use NSTask with Objective-C.