(encrypts only latin letters, case insensitive)

• Git - Download & Install Git.
• Node.js - Download & Install Node.js and the npm package manager.

First you need to clone the repo:

git clone https://github.com/victorlitvinenko/caesar-cipher-cli.git

Next go to the repo directory and install all dependencies:

npm install

After that type the console command with the node interpreter. For example:

node ./task1/my_caesar_cli -a encode -s 3

• -s, --shift <number> - How many characters to shift
• -i, --input <fileName> - File path for encryption / decryption
• -o, --output <filePath> - File path for recording the encryption / decryption result
• -a, --action <encode/decode> - specify <encode> for encryption, <decode> - for decryption

node task1/my_caesar_cli --action encode --shift 7 --input plain.txt --output encoded.txt

encodes information from the plain.txt with a 7 characters shift and writes the result to the encoded.txt

If one of the files does not exist, an error will appear