Simple File Encryption with OpenSSL

openssl_aes256.sh

# Create file
echo My_super_secret > secrets.txt
# Encrypt with password
openssl aes-256-cbc -a -salt -in secrets.txt -out secrets.txt.enc
# Decrypt with password input
openssl aes-256-cbc -d -a -in secrets.txt.enc -out secrets1.txt
# Decrypt with password as option
openssl aes-256-cbc -d -a -k qwerty -in secrets.txt.enc -out secrets2.txt

# Link: http://tombuntu.com/index.php/2007/12/12/simple-file-encryption-with-openssl/