Simple Command line interface (CLI) application example in NodeJS.

This is a simple example that shows how you can natively play around with the NodeJS command arguments. If you want a complete solution for building NodeJS CLI applications, I'd suggest you go for the Commander library 😻.

1. Clone the repository.

2. Stay in the parent folder of the project.

3. Execute the application:

node nodejs-cli

this will automatically execute the index.js file inside the nodejs-cli folder.

Output: No options provided.

4. Execute with some flags:

• Help flag: --help

node nodejs-cli --help

Output: This is an example cli app with nodeJS..

• Help flag alias: -h

node nodejs-cli -h

Output: This is an example cli app with nodeJS..

• Name flag with parameter: --name or -n

node nodejs-cli --name Ambratolm

Output: Hello, Ambratolm! Welcome! :D

• Execute command options through flags (arguments prefixed with "--") with aliases (arguments shorthands prefixed with "-").
• If flags are duplicate or merged with their aliases it executes the associated command one time only.
• Prompts unknown flags.
• To add a new option flag, just add a method in the actions/@methods.js file.
• To add an alias for a flag, just add an entry in actions/@aliases.js file with the name of the targeted method as the key and an array of aliases as the value.

Licensed under MIT.