last-check state2

#!/usr/bin/env bash

log_dir="/var/log"
logs_ver=( "wtmp" "wtmp.1" "wtmp.2" "wtmp.3" )
sh="shutdown"
re="reboot"

for i in ${logs_ver[@]}; do
        wtmp_logs=$log_dir/$i
        if [ -f "$wtmp_logs" ]; then
                echo "Log for $wtmp_logs"
                        if uname -a | grep -i bsd > /dev/null 2>&1;
                                then echo "System is *Bsd variant"
                                        absd=`last -f $wtmp_logs| grep -i -E "$re"|wc -l`
                                        bbsd=`last -f $wtmp_logs| grep -i -E "$sh"|wc -l`
                                        if [ $absd -gt $bbsd ]; then
                                                echo "reboot $absd times > shutdown $bbsd times"
                                                echo "sumething not right"
                                        else
                                                echo "reboot $absd times = shutdown $bbsd times OK"
                                        fi
                        elif uname -a | grep -i linux > /dev/null 2>&1;
                                then echo "System is *Linux variant"
                                        a=`last -a -x -f $wtmp_logs| grep -i -E "$re"|wc -l`
                                        b=`last -a -x -f $wtmp_logs| grep -i -E "$sh"|wc -l`
                                        if [ $a -gt $b ]; then
                                                echo "reboot $a times > shutdown $b times"
                                                echo "sumething not right"
                                        else
                                                echo "reboot $a times = shutdown $b times OK"
                                        fi
                        else
                                echo "not found"
                        fi
        else
                echo "wtmp log not existed for $wtmp_logs"
        fi
done