CLI encryptor decryptor has the folowing arguments which should be passed:
-mode — could be "enc" or "dec" which means encoding or decoding respectively.
-key — integer which is used to en/decrypt data.
-data — string which should be en/decrypted. If both data and in are passed, program will prefer -data over -in
-in — path to source file. If set, takes a line from the file and en/decrypts it.
-out — path to destination file. If set, writes the en/decrypted text to a file. Otherwise output it in command line.
-alg — algorithm. There are already 2 algorithms: "unicode" and "shift".