diff --git a/src/morevna.sh b/src/morevna.sh
--- a/src/morevna.sh
+++ b/src/morevna.sh
@@ -1,3 +1,5 @@
+#!/bin/bash
+
 # setup encrypted container
 #sudo losetup -f ext2.img
 #sudo cryptsetup open --type=luks /dev/loop0 ext2luks
@@ -6,12 +8,15 @@
 # generate certificate
 # openssl req -x509 -newkey rsa:4096 -keyout key.pem -out cert.pem -days 365 -nodes -subj "/CN=name"
 
+set -e
+DIRNAME=`dirname $0`
+
 sudo losetup -f ~/ext2.img
 sudo cryptsetup open --type=luks /dev/loop0 ext2luks
 sudo mount /dev/mapper/ext2luks ~/temp
 
 sudo rdiff-backup -v 5 ~/Dokumenty ~/temp/Dokumenty
-sudo rdiff-backup -v 5 ~/Projekty ~/temp/Projekty
+sudo rdiff-backup -v 5 --exclude '**/__pycache__/' ~/Projekty ~/temp/Projekty
 sudo rdiff-backup -v 5 ~/Obrázky ~/temp/Obrázky
 
 sudo umount /dev/mapper/ext2luks
@@ -20,5 +25,5 @@ sudo losetup -d /dev/loop0
 
 echo
 
-python morevna.py build ~/ext2.bin ~/ext2.img
-python morevna.py push --tree ~/ext2.bin ~/ext2.img
+python $DIRNAME/morevna.py build ~/ext2.bin ~/ext2.img
+python $DIRNAME/morevna.py push --tree ~/ext2.bin ~/ext2.img