[launchd-dev] User agent modified file check for all users?

Hey All, I had a question about creating a User Agent for multiple users in Lingon. Is there a way to set the When:Run it if this file is modified as: ~/Library/Preferences/com.systempreferences.plist instead of /Users/loggedInUser/LibraryPreferences/com.apple.systempreferences.plist? It doesn¹t seem to recognize ~/Library This way my terminal command will run if any User¹s com.apple.systempreferences.plist is modified. Thank you very much! Galen Sprague Senior Analyst Technical ..: Apple Systems :.. Marketing IS Staples, Inc. 500 Staples Dr. Framingham, Ma 01702 galen.sprague@staples.com :.. 508-253-1374