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As long as you have perl based rename. You can check:
=$ rename --help
Unknown option: help
Usage: rename [-v] [-n] [-f] perlexpr [filenames]
That's the good one.
There are 3 alternatives - vote for the best!
Article mentions what each part of the command is responsible for.
http://raymondcrandall.com/post/1360780719/easily-renaming-lots-of-files
If you can do better, submit your command here.
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In case you get 'Artist - Song name' turned into 'Artist---Song-name' you need to compress the extra hyphens.
@Karol:
if you want to compress (it wasn't mention in original snippet), it's trivial with rename:
rename 's/[ -]+/-/g' *
This is really minimalistic. I like it. Just for clarification though, do all distributions have the rename command? I think I might have read somewhere how only a few did.
@RaymondCrandall:
on ubuntu it comes from perl package. I don't have any other distributions handy, so can't check them.
There are two renames I know of: one is a perl thing, the other one is in util-linux-ng (I'm using Arch Linux) - man 1 rename - much simpler than the perl one.