#!/bin/bash
log_file="/var/log/nc_audit/passchange_check.log"
if [[ -s "${log_file}" ]]; then
    last_line=$(tail -n 1 "${log_file}")
    if [[ "${last_line}" == *"CRITICAL!"* ]]; then
        tac "${log_file}" | awk '/OK./{exit}1' | tac
        exit 2
    fi
fi
echo "OK."
exit 0