I’ve been using a great app called NameChanger for years now. I can’t tell you how much time I’ve saved by renaming files with its smart replace, append, prepend and series functions. The app is so simple and such a staple to my work flow, I often forget it’s not part of OS X. On that note, if you’re listening, Apple, buy this and make it so.
Basically NameChanger lets you take files from the Finder and batch rename them with ease. There are options to replace first or last occurrences, all occurrences, prepend or append text and even remove characters. All this with just a few clicks. What’s even better is you can create a sequence like it’s nothing. Just imported a hundred images of a recent trip from your camera? Want them to be named my-trip-01.jpg and so on? Drag them to NameChanger and sequence and in a few clicks it will take care of the rest. Bam. Easy. Done.
It’s a really powerful little piece of software that will save you tons of time and increase productivity. The best part? It’s free. I do recommend throwing a few bucks their way via PayPal if you really enjoy it, which I’m sure you will.