You could use Static methods to essentially create an automation to do this.

To add that Static method (or any really) to an automation;

1. Right-click on the Toolbox window and select "Choose Items".
2. Select the "Pega Robotics Static Members" tab.
3. Select the "From Global Assembly Cache" radio button.
4. Browse to the assembly containing the method you want; in this case, MSCORLIB.
5. Locate the "Directory" node.
6. Expand it and check the GetFiles method.
7. It will now show on your Toolbox and can be dragged into an automation for use.
8. Do the same steps for the "Path" node and the "Combine" and "GetFileName" methods.
9. Do the same steps for the "File" node and the "Move" method.