add printer drivers function

gistfile1.txt

locate_printer_driver(){
	# $1 is printer_make $2 is printer_model
	driver_location=$(zgrep -i -E "${1}.*${2}" /Library/Printers/PPDs/Contents/Resources/*.gz | grep -v "Fax" | awk -F ":" '{print $1}' | head -1)
	if [ -z "$driver_location" ]; then
		echo $(date "+%a %b %d %H:%M:%S") "- *** Error *** Unable to locate PPD for make: $1 model: $2"
		echo $(date "+%a %b %d %H:%M:%S") ""
		echo $(date "+%a %b %d %H:%M:%S") "	 -  If you are sure the driver (PPD) is installed for this printer then"
		echo $(date "+%a %b %d %H:%M:%S") "	 -  please check you are specifying the correct model code"
		echo $(date "+%a %b %d %H:%M:%S") "	 -  for your printer as it is listed in the PPD file."
		echo $(date "+%a %b %d %H:%M:%S") ""
		echo $(date "+%a %b %d %H:%M:%S") "- Defaulting to using the generic PPD. Your mileage may vary"
		driver_location="/System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/PrintCore.framework/Versions/A/Resources/Generic.ppd"
	else
		echo $(date "+%a %b %d %H:%M:%S") "- Found PPD: $driver_location"
	fi
	add_printer "$printer_server_address" "$printer_queue_name" "$driver_location"
}