Batch rename extension of all files in a folder, in the example from .txt to .md

rename 's/.txt/.md/i' *

By: Juev
2010-12-09 18:50:17

6 Alternatives + Submit Alt

What Others Think

Should be rename 's/txt$/md/i' *.txt instead of rename 's/.txt/.md/i' * to make sure it doesn't accidentally match ".txt" somewhere in the middle of a filename.
mobilediesel · 609 weeks and 4 days ago
@mobilediesel Yes, you are right. I haven't thought of it. Thanks big for the amendment!
Juev · 609 weeks and 4 days ago
Also, if you have s/.txt/.md/i, you want to escape the periods; they're metachars in REs. Otherwise it'll replace "asdftxt" with ""
kaedenn · 609 weeks and 4 days ago

What do you think?

Any thoughts on this command? Does it work on your machine? Can you do the same thing with only 14 characters?

You must be signed in to comment.

What's this? is the place to record those command-line gems that you return to again and again. That way others can gain from your CLI wisdom and you from theirs too. All commands can be commented on, discussed and voted up or down.

Share Your Commands

Stay in the loop…

Follow the Tweets.

Every new command is wrapped in a tweet and posted to Twitter. Following the stream is a great way of staying abreast of the latest commands. For the more discerning, there are Twitter accounts for commands that get a minimum of 3 and 10 votes - that way only the great commands get tweeted.


Subscribe to the feeds.

Use your favourite RSS aggregator to stay in touch with the latest commands. There are feeds mirroring the 3 Twitter streams as well as for virtually every other subset (users, tags, functions,…):

Subscribe to the feed for: