gistfile1.js

#!/usr/bin/env node

var path = require('path'),
    fs = require('fs'),
    sys = require('util'),
    os = require('os'),
    exec = require('child_process').exec,
    child,
    mkdirp;

var exitCode = 0;
var cmd = 'PATH="$PATH:/opt/local/bin" /opt/local/bin/lessc --source-map-inline --source-map '+process.argv.slice(1).slice(1).join(' ');
//console.log(cmd);

child = exec(cmd, // command line argument directly in string
  function (error, stdout, stderr) {      // one easy function to capture data/errors
    if(stdout.length > 0) {
      process.stdout.write('stdout: '+stdout);
      process.stdout.write('line: '+cmd);
    }
    if(stderr.length > 0) {
      process.stderr.write('stderr: '+stderr);
      process.stderr.write('line: '+cmd);
      exitCode = 1;
    }
    if (error !== null) {
       exitCode = 1;
       console.log('exec error: ' + error);
    }
});

process.on('exit', function() { process.reallyExit(exitCode) });