Install latest/beta of truecrypt
Ubuntu 16.04 or later?
Make sure snap support is enabled in your Desktop store.
Install using the command line
sudo snap install truecrypt --beta
Don't have snapd? Get set up for snaps.
TrueCrypt is a program for establishing and maintaining an encrypted volume (data storage device). On-the-fly encryption means that data are automatically encrypted or decrypted right before they are loaded or saved, without any user intervention. No data stored on an encrypted volume can be read (decrypted) without using the correct password/keyfile or correct encryption keys. The entire file system is encrypted (i.e., file names, contents of every file, meta data, etc).
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Choose your Linux distribution to get detailed installation instructions. If yours is not shown, get more details on the installing snapd documentation.