QUICK INFO:

• Symmetric encryption: single key; must be sent to receiver.

• command for symmetric encryption of text with result on Terminal window: 

  • echo "Text you want to encrypt" | gpg --symmetric --armor --cipher-algo AES256
    

• command for symmetric encryption of text with result on file:

  • echo "Text you want to encrypt" | gpg --symmetric --armor --cipher-algo AES256 > filename.txt
    

• command for decryption with result on Terminal window:

  • echo "Encrypted text" | gpg --decrypt
    

• command for decryption with result on file:

  • echo "Encrypted text" | gpg --decrypt > filename.txt