caesar-cipher

Сaesar-cipher will help you encrypt latin symbols of a given string. This will be done by shifting all letters N positions to the right (encode) or to the left (decode).

Installation and Start

1. Clone the repository git clone https://github.com/kastrubait/caesar-cipher.git
2. Go to the directory: cd caesar-cipher
3. Install node_modules: npm i
4. Start: caesar_cipher_cli [options]

Options

Each option can have a short flag (single character) and a long name. Options on the command line are not positional, and can be specified before or after other command arguments. You can view options using the command caesar_cipher_cli --help

-a, --action , action takes the values: (encode/decode), require
-s, --shift , shift must be a positive number, require
-i, --input , input sets the path to the file, by default "input.txt"
-o, --output , output sets the path to the file, by default "output.txt"
-h, --help, display help for command

Example

> caesar_cipher_cli -a encode -s 7 -i input.txt -o output.txt
> caesar_cipher_cli --action encode --shift 7 --input "C:\Work\plain.txt" --output "C:\Work\encoded.txt"
> caesar_cipher_cli --action decode --output plain.txt -shift 7

If all arguments are passed, the application reads from the file and writes the encrypted / decrypted text to the file. The files must be created before starting work. By default you can use input.txt and output.txt located in Сaesar-cipher.

Exit

Finish work with Сaesar-cipher - Сtrl+C or Ctrl+D