Find the device node (/dev/usb/lp0) for a connected line printer and symlink it to a known location

lp-symlink.sh

#!/bin/bash
for i in 0 1 2 3 4 5 6 7 8 9; do
	if udevadm info -q all -n /dev/usb/lp$i >/dev/null 2>&1; then
		echo Found lp$i
		[ -f /opt/cmkbon/printer ] || unlink /opt/cmkbon/printer
		ln -s /dev/usb/lp$i /opt/cmkbon/printer
	fi
done