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cmd-args

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cmd-args

A simple command-line argument parser for NodeJS command-line tools.

  • 2.0.7
  • latest
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  • npm
  • Socket score

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cmd-args

GitHub release npm version npm downloads npm downloads

A simple command-line argument parser for NodeJS command-line tools.

Install:

$ npm install cmd-args

example:

import { createArgParser } from 'cmd-args'

const myParser = createArgParser({
  cmd: 'my-cmd',
  title: 'My CMD',
  description: 'my-cmd description...',
  help: true,
  version: 'v1.0.0',
  run: (options) => {
    console.log(options)
  },
  options: [
    {
      type: 'flag',
      key: 'verbose',
      alias: 'v',
      description: 'Enable verbose mode.',
    },
    {
      type: 'option',
      key: 'output-file',
      alias: 'o',
      description:
        'Specifies location to write the output file. If not set the output will go to stdout.',
    },
  ],
  arguments: [
    {
      key: 'input-files',
      description: 'List of input files to be used.',
      multi: true,
      required: true,
    },
  ],
})

myParser.run()

example run:

$ my-cmd --version

outputs:

v1.0.0

example run:

$ my-cmd --help

outputs:

My CMD

my-cmd description...

Usage:
  my-cmd [OPTIONS] --help
  OR
  my-cmd [OPTIONS] <input-files>...

my-cmd [OPTIONS]:
      --version            Prints version of this command.
      --help               Prints help text for this command.
  -v, --verbose            Enable verbose mode.
  -o, --output-file[=ARG]  Specifies location to write the output file. If not set the output will go to stdout.

ARGUMENTS:
  input-files=ARG+  List of input files to be used.

example run:

$ my-cmd file1 file2

outputs:

{
  "verbose": false,
  "input-files": ["file1", "file2"]
}

example run:

$ my-cmd file1 file2 -o file-out

outputs:

{
  "verbose": false,
  "input-files": ["file1", "file2"],
  "output-file": "file-out"
}

example run:

$ my-cmd file1 file2 --output-file file-out

outputs:

{
  "verbose": false,
  "input-files": ["file1", "file2"],
  "output-file": "file-out"
}

example run:

$ my-cmd -v file1 file2 --output-file file-out

outputs:

{
  "verbose": true,
  "input-files": ["file1", "file2"],
  "output-file": "file-out"
}

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Package last updated on 17 Aug 2020

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