/nodejs-caeser-cipher-cli

Primary LanguageJavaScript

nodejs-caeser-cipher-cli

A simple NodeJS CLI tool to encode and decode a string by Caesar cipher

Installation

Before you run CLI tool, please, run this command:

npm install

CLI accepts 4 options (short alias and full name):

  1. -s, --shift: a shift
  2. -i, --input: an input file
  3. -o, --output: an output file
  4. -a, --action: an action encode/decode

Usage example:

$ node my_caesar_cli -a encode -s 7 -i "./input.txt" -o "./output.txt"
$ node my_caesar_cli --action encode --shift 7 --input plain.txt --output encoded.txt
$ node my_caesar_cli --action decode --shift 7 --input decoded.txt --output plain.txt

input.txt This is secret. Message about "_" symbol!

output.txt Aopz pz zljyla. Tlzzhnl hivba "_" zftivs!

!!!! It searches for input file starting from the same level as caeser-cipher-cli folder.