Run by pressing the 'Play' button in the toolbar. Configure the second as shown to Make Sequential with new name and separated by nothing. Drop & drop files on the first action to add them to the workflow. From the Library, add a Get Specified Finder Items action and a Rename Finder Items action (don't create copies of the files when asked about it). Launch it, and select to create a new workflow. Instantly rename dozens of files in the Finder. Find and add images from your favorite websites to iPhoto. Create and print a family directory with the contacts in your Address Book. With Automator you can automate much of what you do with your computer. Your Mac comes with Automator, a tool allowing you create so-called workflows. Enter Name Mangler, which makes short work of all your file renaming tasks. The Finder is good at a lot of things, but renaming a lot of files is not one of them. The preview shows how the files will be named afterwards. Just drag & drop files on the program window and set the rules. Have Hazel move files around based on name, date, type, what site/email address it came from (Safari and Mail only) and much more. It features a rule interface similar to that of Apple Mail so you should feel right at home.

Hazel watches whatever folders you tell it to, automatically organizing your files according to the rules you create.

Hazel monitors folders for changes and can rename newly added files.

Automator mac rename file by text