I have a folder, let's say 'C:\directory', with a large number of PDF files in it. This folder also houses my matlab code that I am working on. Some of them have the same first few letters, let's say 'abcd' in their titles, while others don't. I want to locate the PDF files with the repeated text in their titles and move them to a new folder, let's say 'C:\directory2'. How can I do this easily, preferably using some combination of ifs and loops? Also, the repeated text will only be at the very beginning of the PDF's titles, not somewhere in the middle if that makes it any easier.