For the record, here's the modified script.
#!/bin/sh
# Script to auto-populate the location field for a specific mac in the JSS
# The information to do this is obtained from the first logged in user.
# Script lovingly stolen from:
# http://derflounder.wordpress.com/2011/12/05/auto-populating-the-location-info-in-the-casper-jss-inventory/
# Implemented : r.purves@arts.ac.uk
# Version 1.0 : 28-01-2013 - Initial Version
# Version 1.1 : 29-01-2013 - Corrected string comparison for UID. Removed department collection.
# Version 1.2 : 30-01-2013 - Added redirect for dscl errors to /dev/null on accountType variable.
# Gets the name of the logged-in user
loggedInUser=`/bin/ls -l /dev/console | /usr/bin/awk '{ print $3 }'`
# Checks the UID of the logged-in user
accountType=`dscl . -read /Users/$loggedInUser 2> /dev/null | grep UniqueID | cut -c 11-`
# If the UID is greater than 1000, the logged-in user
# is using a account provided by a directory service
# like Active Directory. If the user account is being
# hosted by a directory service, the directory service
# is polled for the user's information
if [[ "$accountType" -gt "1000" ]]; then
userFirstname=`dscl . -read /Users/$loggedInUser | grep FirstName: | cut -c 11-`
userLastname=`dscl . -read /Users/$loggedInUser | grep LastName: | cut -c 11-`
userEmail=`dscl . -read /Users/$loggedInUser | grep EMailAddress: | cut -c 15-`
userPosition=`dscl . -read /Users/$loggedInUser | awk '/^JobTitle:/,/^JPEGPhoto:/' | head -2 | tail -1 | cut -c 2-`
userPhone=`dscl . -read /Users/$loggedInUser | grep PhoneNumber: | cut -c 14-`
userRoom=`dscl . -read /Users/$loggedInUser | grep Building: | cut -c 11-`
echo "Submitting information for network account $loggedInUser..."
jamf recon -endUsername "$loggedInUser" -realname "$userFirstname $userLastname" -email "$userEmail" -position "$userPosition" -phone "$userPhone" -room "$userRoom"
# If the UID is less than 1000, the logged-in user
# is using a local account. Since no additional
# information is likely to be available, the only
# information reported to the JSS is the username
# and that it is a local account.
else
echo "Submitting information for local account $loggedInUser..."
userPosition="Local Account"
jamf recon -endUsername "$loggedInUser" -position "$userPosition"
fi
exit 0
