Follow these steps to install VeraCrypt:

1. Download VeraCrypt from here:
   https://www.veracrypt.fr/en/Downloads.html
   Extract the file to your home directory. The Linux version of VeraCrypt comes as a set of universal installer scripts that should work on any Linux distribution. Once you extract the .tar.bz2 archive file, you'll see two scripts for GUI installation and two for console-mode installation. One of each of those is for 32-bit Linux, and one of each is for 64-bit Linux:

donnie@ubuntu:~$ ls -l vera*
-r-xr-xr-x 1 donnie users 2976573 Jul 9 05:10 veracrypt-1.21-setup-console-x64
-r-xr-xr-x 1 donnie users 2967950 Jul 9 05:14 veracrypt-1.21-setup-console-x86
-r-xr-xr-x 1 donnie users 4383555 Jul 9 05:08 veracrypt-1.21-setup-gui-x64
-r-xr-xr-x 1 donnie users 4243305 Jul 9 05:13 veracrypt-1.21-setup-gui-x86
-rw-r--r-- 1 donnie users 14614830 Oct 31 23:49 veracrypt-1.21-setup.tar.bz2
donnie@ubuntu:~$

2. The executable permission is already set, so all you have to do to install is this:

donnie@ubuntu:~$ ./veracrypt-1.21-setup-console-x64

You'll need sudo privileges, but the installer will prompt you for your sudo password. After reading and agreeing to a rather lengthy license agreement, the installation only takes a few seconds.