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May 19, 2015 - A Look At The New Commandlinefu
I've put together a short writeup on what kind of newness you can expect from the next iteration of clfu. Check it out here.
March 2, 2015 - New Management
I'm Jon, I'll be maintaining and improving clfu. Thanks to David for building such a great resource!

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Psst. Open beta.

Wow, didn't really expect you to read this far down. The latest iteration of the site is in open beta. It's a gentle open beta-- not in prime-time just yet. It's being hosted over at UpGuard (link) and you are more than welcome to give it a shot. Couple things:

  • » The open beta is running a copy of the database that will not carry over to the final version. Don't post anything you don't mind losing.
  • » If you wish to use your user account, you will probably need to reset your password.
Your feedback is appreciated via the form on the beta page. Thanks! -Jon & CLFU Team

convert uppercase files to lowercase files

Terminal - convert uppercase files to lowercase files
rename 'y/A-Z/a-z/' *
2009-02-22 20:42:10
User: dakira
Functions: rename
convert uppercase files to lowercase files


There are 6 alternatives - vote for the best!

Terminal - Alternatives
rename 'y/A-Z/a-z/' *
for x in *;do mv "$x" "`echo $x|tr [A-Z] [a-z]`";done
rename -fc *

Know a better way?

If you can do better, submit your command here.

What others think

I cant get it working (in bash).

Comment by JollyJumper 430 weeks and 4 days ago

Same here. On my linux system (gentoo) the command takes the form:

rename 'from' 'to'

Comment by puddleglum 421 weeks and 1 day ago

Hey, this striped off the end of my post! It should have been:

rename 'from' 'to' FILE_PATTERN

Comment by puddleglum 421 weeks and 1 day ago

thats actually prename, a perl patched rename used in debian.

Comment by binarycodes 418 weeks and 2 days ago

Actually this is what I use:

for x in *; do mv "$x" "`echo $x | tr [A-Z] [a-z]`"; done
Comment by UrK 414 weeks ago

Only convert files, not directories:

find ./ -type f -exec rename 'y/A-Z/a-z/' {} \;
Comment by oracular 389 weeks and 1 day ago

Use something like

for i in *; do mv "$i" tempfile; mv tempfile "$(echo $i | tr '[A-Z]' '[a-z]')"; done

if you mount vfat partition in linux.

Comment by unixmonkey12660 346 weeks and 5 days ago

Your point of view

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