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Functions

Rename all .jpeg and .JPG files to have .jpg extension

Terminal - Rename all .jpeg and .JPG files to have .jpg extension
rename 's/\.jpe?g$/.jpg/i' *
2010-11-14 21:22:13
User: icebrain
Functions: rename
16
Rename all .jpeg and .JPG files to have .jpg extension

the "i" controls case sensitiveness. It's slightly inefficient since it uselessly renames .jpg to .jpg, but that's more than compensated by launching only one process instead of two, besides being shorter to write.

Alternatives

There are 2 alternatives - vote for the best!

Terminal - Alternatives
rename 's/\.jpeg/\.jpg/' *.jpeg; rename 's/\.JPG/\.jpg/' *.JPG

Know a better way?

If you can do better, submit your command here.

What others think

This is "perl rename" as in it uses a perl-style regular expression to specify the search and replacement. On many linux systems 'rename' is actually a symlink to /usr/bin/prename reflecting this. There is also a more rudimentary rename command on most linux systems (from the util-linux package and invoked as rename.ul at least under ubuntu) which would do the simple renaming you're doing here:

rename.ul .JPG .jpg *.JPG
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