Batching rename files in Mac OS X Yosemite

In response to our ever growing digital libraries, the need and importance of efficiently managing the data is also increasing. A consistent file name structure including information like the date, description and project, is the best way to organize and locate our digital data. For this purpose, Apply has launched multiple features in OS X, which help users corral their documents, pictures and other files like Finder Tags, Spotlight metadata. OS X Yosemite is one of these.

With OS X Yosemite, Apple has incorporated fundamental batch renaming capabilities directly into the Finder. This article demonstrates this process via simple steps.

We have a Finder Folder having 20 images file, all named with the camera naming pattern (IMG_4087, IMG_4088, etc). This is not helpful and you would like to rename them with a file name including date they were shot on and a brief description.
You can do it going to them one by one, but it would take a lot of your time, especially when the folder contains more than 20 files even, just like we are dealing in here.
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Try the new Batch Rename feature in OS X Yosemite. Select all the files to be renamed. Right click on the selected files and select “Rename XX items”. XX refers to the number of files in the folder which you want to rename.
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You would see a new window with some basic options given for batch renaming your files, including replace text, add text and format.
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In our example, we would want a date, but not the timestamp that comes along with automatic date application in the Name & Date option. So, we will select “Name & Index”, which helps us putting the date in a desired format.

It means that we would enter “20140710-Beach-“in the Custom Format box, and instruct Finder to append the index number just after the file name. We put the dash after “Beach” so that index number is separated from the description. When you fiddle with the naming scheme, Finder would show you an example preview of what the files would look like at the window bottom.
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Once you are all set with required batch name, click “Rename” to apply these changes. Your files would have a new name and sequence, saving much time and hassle of renaming those one by one.