A number of file referencing helper scripts are available as part of the Maya Bonus Tools. Bonus Tools is a free collection of useful Maya scripts and plug-ins that are available from the Autodesk Web site (www.autodesk.com/maya-bonustools).
To download the Bonus Tools from the Autodesk web site
You will need to register in order to obtain access to some areas of the Autodesk Web site. Once installed, the Bonus Tools appear within Maya in their own drop-down menu.