Install TOMB for data encryption on Ubuntu 14.04 LTS

#!/bin/bash
#
# Install TOMB for data encryption on Ubuntu 14.04 LTS
# Source of Inspiration: https://www.youtube.com/watch?v=CMLJmfjCaGM
#
# MAKE SURE YOU RUN THIS SCRIPT BEING ROOT!!!
#
# Check root privileges
if [[ $EUID -ne 0 ]]; then
   echo "This script must be run as root"
   exit 1
fi
#
# install some programs that are needed
apt-get install dcfldd steghide qrencode mlocate swish++ unoconv haveged zsh gnupg cryptsetup pinentry-curses wget -y
# switch off swap for security
swapoff -a
# goto Downloads directory
cd Downloads
# download tomb
wget https://files.dyne.org/tomb/tomb-2.3.tar.gz
# extract tomb
tar xvfz tomb-2.3.tar.gz
# goto tomb install directory
cd tomb-2.3
# install tomb
sudo make install
#
# Fine done installing!!!
# Now how to make this work as an example
#
# make a tomb of 20 Gb pretending being an ISO file or something else
tomb dig -s 20000 secret.iso
echo "this may take some time depending on your computer CPU speed....."
# create a new key and set its password
tomb forge secret.key
echo "this may take some time depending on your computer CPU speed....."
# format the tomb, lock it with key
tomb lock -k secret.key secret.iso
# open the tomb using the key and password
tomb open secret.iso -k secret.key
# make sure you as a user have the right to use the tomb
# because the tomb needs to be created by root!
chown <your-username> /media/secret/
# close the tomb(s)
tomb close
# hide the key in a jpeg image
tomb bury -k secret.key your.jpg