(OS X) Fix paused printers

fix-paused-printers.sh

#!/bin/bash
#----------AUTHOR------------
	# Jacob Salmela
	# 7 November 2013
	# https://github.com/jakesalmela/

#----------RESOURCES---------
	# You need terminal-notifier to be installed
	# I used brew install terminal-notifier
	# You could also get it at github
	# https://github.com/alloy/terminal-notifier

#---------DESCRIPTION--------
	# Finds paused or disabled printers and re-enables them

#-----------USAGE------------
	# To run: 
	#
	#	--Locally:
	#			sudo ./Fix-Paused-Printers.sh
	#	--Casper Suite:
	#			Upload to Casper Admin and run via Casper Remote
	#	--Apple Remote Desktop:
	#			Copy and paste this script and run as root

#----------VARIABLES---------	
	# OS Version for sending Notifications if using 10.8 or higher
	osVersion=$(sw_vers -productVersion)
	
#----------FUNCTIONS---------

#####################################
function findDisabledPrintersAndFix()
	{
	# If no disabled printers exist
	if [ -z $(lpstat -p | awk '/disabled/ {print $2}') ] &> /dev/null
		# Then just echo message and be done
		then echo "The printer(s) are nominal."
		
			# Puts all of the current printer statuses into a variable
			printerStatus=$(lpstat -p | awk '{print $1, $2, $3, $4}')
	
			# List status of all printers so admin can see that the script worked
			echo -e "$printerStatus"
			return 3
			exit
		
		# Otherwise something is wrong and the for loop should start
		else echo "DISABLED: Something is wrong with the printer(s)..."
	fi
		
	# for the output of the lpstat command...
	for OUTPUT in $(lpstat -p | awk '/disabled/ {print $2}')
		
	# ...do the following commands
	# The lpstat command above displays printer information
	# That is piped into awk and searches for the term disabled
	# Finally it displays only the 2nd field which is the printer name
	do
		# Cancel all jobs
		echo -e "\tCancelling jobs for $OUTPUT"
			cancel -a
			
		# Disable CUPS and sleep for two seconds
		echo -e "\tDisabling CUPS…"
			cupsdisable $OUTPUT
#			sleep 1
		echo -e "\tCUPS disabled."
		
		# Re-enable CUPS and sleep for two more seconds
		echo -e "\tRe-enabling CUPS…"
			cupsenable $OUTPUT
#			sleep 1
		echo -e "\tCUPS enabled."
		
	# Complete the for loop	
	done
	
	# Puts all of the current printer statuses into a variable
	printerStatus=$(lpstat -p | awk '{print $1, $2, $3, $4}')
	
	# List status of all printers so admin can see that the script worked
	echo -e "$printerStatus" 2> /dev/null
	}

#########################
function notifyUserOfFix()
	{
	# Check to see if terminal-notifier is installed and is executable
	if [ -x /Applications/Terminal\ Notifier.app/Contents/MacOS/terminal-notifier ];then
		
		# If it is, send the user a notification and optional audible alert
		# Uncomment the -execute line and the backslash on the line above it to make the alert audbile
		echo "Sending notification to user that the printer is fixed..."
		/Applications/Terminal\ Notifier.app/Contents/MacOS/terminal-notifier \
							-group printers \
							-title "\"Printer(s) fixed\"" \
							-subtitle "\"It should be working now.\"" \
							-message "\"You will need to re-submit your print jobs\"" #\
#							-execute $(say "Try printing now." &> /dev/null)
		echo "Notification sent to user."
	
	# If notifier does not exist, just exit
	else
		echo "I fixed the printer(s), but could not notify the user."
		echo "terminal-notifier is not installed or not executable.  Exiting..."
		
		# Return a non-zero code meaning it did not complete successfully
		return 1
		exit
		
	# Close the if statement
	fi
	}

#---------------------------------#
#---------------------------------#
#----------script starts----------#
#---------------------------------#
#---------------------------------#

findDisabledPrintersAndFix
if [ $? -eq 0 ];then
	case $osVersion in
		10.6.*) echo "Notifications not supported on $osVersion";;
		10.7.*) echo "Notifications not supported on $osVersion";;
		10.8.*) notifyUserOfFix;;
		10.9.*) notifyUserOfFix;;
		*) echo "No actions available for $osVersion.";;
	esac
else 
	echo "The printer(s) seem OK."
fi