Add lsit_files.sh

list_files.sh

+#!/bin/bash
+DIR=$(realpath $(dirname $0))
+source $DIR/inc.sh
+
+export PASSPHRASE="$encpass"
+export FTP_PASSWORD="$ftppass"
+
+/usr/bin/duplicity list-current-files ftp://$user@$host/$remotedir/
+
+unset PASSPHRASE
+unset FTP_PASSWORD