#!/bin/bash

​

LIST=$(cat /proc/scsi/sg/devices | awk '{ print $NF }')

​

COUNT=1

for i in $LIST;

do

        FAILED=$(cat /proc/scsi/sg/device_strs | head -n$COUNT | tail -n1)

​

        if [ $i -eq "-1" ];

        then

                echo CRITICAL - $FAILED

                exit 2

        fi

​

        if [ $i -ne "1" ];

        then

                echo WTF - $FAILED

                exit 3

        fi

​

        let COUNT=COUNT+1

done

​

echo OK - $(cat /proc/scsi/sg/device_strs | sed 's/$/ -/' | paste $(perl -e "print \"- \"x$COUNT;"))

​