Zaznam aktivního okna s časem, IP adresou, a aktivni wifi

#!/bin/bash

MYIP=`curl -s http://whatismyip.akamai.com/`
MYWIFI=`iwconfig 2>/dev/null | grep -E 'ESSID:"[^"]' | cut '--delimiter="' -f 2`
BASEDIR=`dirname $0`
DATETIME=`date "+%F_%T"`
scrot -z -u $BASEDIR/latest.jpg
MD5=`openssl md5 $BASEDIR/latest.jpg`
LATEST_MD5=`cat $BASEDIR/latest.jpg.md5`
if [[ $MD5 != $LATEST_MD5 ]]; then
    mkdir -p log
    OUTNAME=$BASEDIR/log/${DATETIME}_${MYIP}_${MYWIFI}.jpg
    mv $BASEDIR/latest.jpg $OUTNAME
fi
echo $MD5 > $BASEDIR/latest.jpg.md5