Node.js process get command line parameter

var fs = require('fs');

fs.readFile(process.argv[2],function(err,data){
  if(err) /*from  w  ww.  ja  v  a 2 s  .c om*/
    return console.log(err);
  else
    console.log(data.toString().split('\n').length-1);
});

console.log("touch here!!!");