cp.js
function(exists, linkString, callback) {
      if (exists) {
        return callback(null, symlink);
      }
      fs.symlink(linkString, _toFile, function(err) {
        callback(err, symlink);
      });
    }
function(exists, linkString, callback) {
      if (exists) {
        return callback(null, symlink);
      }
      fs.symlink(linkString, _toFile, function(err) {
        callback(err, symlink);
      });
    }
function ( exists , linkString , callback ) { if ( exists ) { return callback ( null , symlink ) ; } fs . symlink ( linkString , _toFile , function ( err ) { callback ( err , symlink ) ; } ) ; }
If link does not already exists, creates it
If link does not already exists creates it