Usage: pyrsa-decrypt [options] private_key pyrsa-decrypt: error: no such option: --version

Usage: pyrsa-decrypt [options] private_key Decrypts a file. The original file must be shorter than the key length in order to have been encrypted. For larger files, use the pyrsa-decrypt-bigfile command. Options: -h, --help show this help message and exit -i INPUT, --input=INPUT Name of the file to decrypt. Reads from stdin if not specified. -o OUTPUT, --output=OUTPUT Name of the file to write the decrypted file to. Written to stdout if this option is not present. --keyform=KEYFORM Key format of the private key - default PEM