post download auto unrar script for transmission

settings.json

    "script-torrent-done-enabled": true,
    "script-torrent-done-filename": "/path/to/transmission_unrar.sh",

transmission_unrar.sh

#!/bin/bash

echo "Checking $TR_TORRENT_DIR/" >> ~/Downloads/unrar_torrent.log
echo "Checking $TR_TORRENT_NAME" >> ~/Downloads/unrar_torrent.log

cd $TR_TORRENT_DIR
# if torrent has directory
if [ -d "$TR_TORRENT_NAME" ]
then
  # check if directory has rar files
  if ls "$TR_TORRENT_NAME"/*.rar > /dev/null 2>&1
  then
    # find rar file
    find "$TR_TORRENT_NAME" -iname "*.rar" | while read file
    do
      # unrar the file to same location
      #echo "$file" >> ~/Downloads/unrar_torrent.log
      /usr/local/bin/unrar x  "$file" "$TR_TORRENT_NAME"
      echo "Unrarred $TR_TORRENT_DIR/$file" >> ~/Downloads/unrar_torrent.log
    done
  fi
fi