Transmission or Cron Unrar script 4 Sonarr

#!/bin/bash
# Unrar packed contents of torrents downloaded.
# Just follow the instructions 1-5 and ur fine
# Dont touch anything else!!! unless u know what u do

# To automate script execution change this 2 lines in settings.json:
# Transmission on Qnap path: /share/CACHEDEV1_DATA/.qpkg/QTransmission/etc/settings.json
#    "script-torrent-done-enabled": true,
#    "script-torrent-done-filename": "/share/Download/extract.sh",

# u dont use Transmission: make a cronjob and point it to the script

# Torrent Client Download path
SOURCE="/share/Download/"                           # 1. change "path" to your liking > "/share/Download/" > is my Transsmission Download path

# Path Script extracts rars to
DESTINATION="/share/Download/extracted/"            # 2. change "path" to your liking > "/share/Download/extracted/" > its my Sonarr Drone Factory Folder

# Data dir
DATADIR="`dirname $0`/extracted/0-extracted-0"      # 3. change "dir" to your liking > "0-extracted-0" > just 4 script to work and a list of the rars extracted
LIST="$DATADIR/extracted.txt"

# Log dir
LOGDIR="`dirname $0`/extracted/0-extracted-0"       # 4. change "dir" to your liking > "0-extracted-0" > just 4 script to work and a script log
LOGFILE="${LOGDIR}/extracted.log"


# Create required directories if does not exist.
DIRECTORIES=($DATADIR $LOGDIR)
for DIR in ${DIRECTORIES[*]}
do
    if [ ! -d "$DIR" ]; then
      echo "Creating dir: $DIR"
      mkdir -p $DIR
    fi
done


# Log content to log file
function log {
  LINE="`date +'%F %H:%M:%S'` $1"
  echo $LINE
  echo $LINE >> $LOGFILE
}

# Backup space symbol
SAVEIFS=$IFS
IFS=$(echo -en "\n\b")

log "Starting job"
# Find all RARs in working directory.
for MYRAR in `find "$SOURCE" -name *.rar`
do
   # Check if it's been decompressed before
   if grep -q $MYRAR $LIST
   then
      # Do nothing.
      echo "Already decompressed" > /dev/null

   # If it hasn't be decompressed before, make a new folder and decompress it
   else
      # Add the name to the list so it will be skipped in the future
      echo $MYRAR >> $LIST

      log "Decompressing $MYRAR"
      FOLDERNAME=`echo "${MYRAR:${#SOURCE}}"`
      FOLDERNAME=`echo $FOLDERNAME | sed 's:[^/]*$::'`
      FINALADDRESS=$DESTINATION$FOLDERNAME

      # Create directory only if it does not exist.
      if [ ! -d "$FINALADDRESS" ]; then
        mkdir $FINALADDRESS
      fi
      /usr/local/sbin/unrar x -o- -inul "$MYRAR" "$FINALADDRESS"        # 5. change unrar path > on Qnap it is /usr/local/sbin/unrar
   fi
done

# Restore space symbol
IFS=$SAVEIFS

log "Job ended"
exit