How to batch convert on OSX?

[countcracula]

I set up the newest release as per the guide, and can successfully run a conversion from the terminal command line. I have about 800 pictures I want to run the same conversion on, and would like to just run it in batch if possible. I don't know how to set up scripts so I'm hoping someone can help me.

I just need it to run the same command on every file in a given directory, to output to a "processed" directory.

Thanks for your help!

I searched the forum but didn't find anything apparent.

[countcracula]

I found a post explaining the mogrify command. I have successfully performed my batch operation!