Batch rename

Several times I’ve had to rename a group of files, usually to change extensions. I usually ended up using a shell command such as ‘for f in *.xyz …’, but thanks to the comments at this blog post, I discovered two very nice batch rename utilities. Renamer4Mac is very nice, free GUI utility. There’s also an elegant command line tool, rename, which lets you use perl expressions to specify how the name should be modified.

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