The script will now auto detect the FILES__PATH, JAIL_FILES_LOC, APPS_PATH in Wordpress installs. You can also backup and restore if the installation techniques and directories are different. No variables need to be set to run the script. You can add to the backup-config the MAX_NUM_BACKUPS to limit the number of back up files kept.
If your all your Wordpress installs are in a subdirectory of the pool path then the search will be quicker if you specify the FIND_DIR variable, but will work fine without it.