Encryption is a process of encoding an important files or message to prevent unauthorized access. Encryption is used to store personal data in a secure way. Linux has various command line tools to encypt files. By using this encryption tools, users can transfer files securely over the internet. User can read the encrypted data only by the decryption key. In Linux distributions, several encryption tools are available including encFS, Openssl, GnuPG, etc. Users are encouraged to use encrypted tools for secure communication