printer_destroyer.sh

#!/bin/bash
#
# Printer Destroyer Script
# Freddie Cox - January 2016 for Knox County Schools
#
# Use Paramter 4 on JSS Script to remove a specific IP address.
echo "[INFO] printer_destroyer script. Parameter 4 Value: ${4}" 

# Get full list of printers & search for socket connection using IP
printer=$(lpstat -s | grep 'socket.*'${4} | awk -F'/' '{print $3}')

# If Printer variable is empty, then don't act. Else. Try to remove
if [ -z $printer ]; then
    # I didn't find anything. End it here.
    echo "[INFO] Printer Not Found. No removal necessary."
else
    # Printer IP was found. Lets try to remove it.
    echo "[INFO] $printer Printer Found. Attempting to remove."
    
    # Use lpstat command to find that printer again and get the name, 
    # then clean up the string by removing the trailing colon. 
    # After that, use the lpadmin -x command to remove the printer.
    remove_printer=$(lpstat -s | grep 'socket.*'${4} | awk -F ' ' '{print $3}' | sed s/://g)
    lpadmin -x $remove_printer
    
    # Check if what we did actually worked. 
    printer_check=$(lpstat -s | grep 'socket.*'${4} | awk -F'/' '{print $3}')
    
    if [ -z $printer_check ]; then
        echo "[INFO] Success! Old Printer Removed."
    else
        echo "[ERROR] Something went wrong. Likly two printers with 1 IP. Otherwise, I'm all out of ideas"
    fi
fi