I created a script in Maya which allows user to change path of the texture files by entering the new Directory path. This is useful in situation where you have a scene file and want to update all or some specific File/Texture node in the scene, so that the textures get loaded from the path specified.
Script can be downloaded from the link mentioned below:
A brief description about the script can be found at my blog :
In case you find it useful or have ideas -regarding what can or should had been done-you can reach me at my email address which is: firstname.lastname@example.org