#!/bin/bash YUBIKEY_SERIAL=`cat /home/nemo/.yubikey-serial.txt` DEVICE_SERIAL=`ykinfo -s | cut -d ' ' -f 2` LOGFILE="/home/nemo/logs/auth.log" export DISPLAY=:0 # We only unlock the device if the key matches if [[ "$YUBIKEY_SERIAL" -eq "$DEVICE_SERIAL" ]]; then echo "`date` unlocked using yubkikey" >> $LOGFILE xautolock -unlocknow fi