Renaming several files can be a pain in the neck, especially if you have to work on dozens or hundreds of them. Thankfully there are solutions out there that will do the donkey work for you at the click of a few buttons.
PC users can use Bulk Rename Utility, available for free (http://www.bulkrenameutility.co.uk/Download.php). It has so many features that the sheer sight might be a little daunting, but here’s what you need to do to get started:
Navigate to the folder and select the files are that you wish to rename (or just click Ctrl+A if you want to select all).
Type in the desired name of the series of files (field 2), then select the prefix or suffix you want to add (field 10), and finally click “Rename”. Done!
Mac users running Yosemite can do it without any third party applications. The function is built into the operating system.
Open the folder that contains the files and select the ones you want to rename (or hit cmd+A to select all). Right click on one of the selected files (or use ctrl+click) and select Rename N Items…
Select the Format option from the scroll down menu and type the new names into the Custom Format field. Click “Rename” and you’re done!
You just get more productive by the day.