Script idesk para pendrive

#!/bin/bash

file1="/home/usuario/.idesktop/pendrive"
file2="/home/usuario/.idesktop/pendrive.lnk"
gestor=`echo $(which pcmanfm)`
estado_1="-1"
estado_2="-1)

while true
do
    buscar=`cat /etc/mtab | grep /dev/sdxx`
    estado_1=`echo $?`
    conectados=`echo $(lsblk)`
    buscado=`echo "$conectados" | grep -o 'sdxx'`
    if [ "$buscado" == "sdxx" ]
    then

        if [ -f $file1 ]
        then
            mv $file1 $file2
            killall idesk && idesk &
        fi

        if [ "$estado" == "1" ]
        then
            pmount /dev/sdxx
        buscar=`cat /etc/mtab | grep /dev/sdxx`
            estado_2=`echo $?`
            if [ "$estado_2" == "0" ]
            then
                $gestor /media/sdxx
            fi
        fi

    else
        if [ -f $file2 ]
        then
            mv $file2 $file1
            killall idesk && idesk &
        fi
    fi

    sleep 5
done