last-check state

#!/usr/bin/env bash

log_dir="/var/log"
logs_ver=( "wtmp" "wtmp.1" "wtmp.2" "wtmp.3" )
#last_state=( "crash" "shutdown" "reboot" )
#crash_status=`last -a -x | grep crash`
#shutdown_status=`last -a -x | grep shutdown`
#status_report=`last -a -x | grep $last_state`

for i in ${logs_ver[@]}; do
        wtmp_logs=$log_dir/$i

        if [ -f "$wtmp_logs" ]; then
                echo "wtmp log existed $wtmp_logs"

                        if last -a -x -f $wtmp_logs| grep "crash";
                                then echo "Status report is CRASH"
                        elif last -a -x -f $wtmp_logs| grep "shutdown";
                                then echo "Shutdown process detected"
                        else
                                echo "not found"
                        fi
        else
                echo "wtmp log not existed for $wtmp_logs"
        fi
done