makemkvcon sh script

#!/bin/bash

# CMD = makemkv.sh Source TrackID

SOURCE=$1
FILE="${SOURCE%.*}"
TRACK=$2

before="$(date +%s)"

if [ -f "$FILE".iso ];
then
   mkdir /home/desktop/"$FILE"
   TARGET=/home/desktop/"$FILE"
   makemkvcon mkv --messages=BD2mkv.log --progress=progress.log iso:"$SOURCE" $TRACK "$TARGET"
else
   mkdir /home/desktop/"$SOURCE"
   TARGET=/home/desktop/"$SOURCE"
   makemkvcon mkv --messages=BD2mkv.log --progress=progress.log file:"$SOURCE" $TRACK "$TARGET"
fi

chmod -R 777 "$TARGET"
chown -R desktop:desktop "$TARGET"

after="$(date +%s)"
elapsed_seconds="$(expr $after - $before)"

echo -e "\n\n\n" >> BD2mkv.log 2>&1
echo MUX DONE IN : $(date -d "1970-01-01 $elapsed_seconds sec" +%H:%M:%S) >> BD2mkv.log 2>&1

sleep 5

mail -s "BD2mkv - $SOURCE" some@mail.com < BD2mkv.log

sleep 5

rm BD2mkv.log
rm progress.log