JavaScript file

cli_test

#!/usr/bin/env node

var cli = require('cli');
var options = cli.parse({
  boola: ['b', 'testing boolean value', 'bool', true]
});

console.log(options);

execlog.sh

% ./cli_test --help
Usage:
  cli [OPTIONS] [ARGS]

Options:
  -b, --boola [BOOL]     testing boolean value (Default is true)
  -h, --help             Display help and usage details
% ./cli_test
{ boola: true }
% ./cli -b false
{ boola: true }
% ./cli --boola false
{ boola: true }