Rename files from upper case filename to lower case (in bash)

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Rename files from upper case filename to lower case (in bash)

This is not really a fresh new post, more just a reminder ;-)
Here is a way to rename files in bash, from upper case filenames to lowercase ones

for i in *; do mv $i `echo $i | tr [:upper:] [:lower:]`; done

This entry was posted on January 31st, 2008 at 08:28:19 pm by Thias and is filed under Scripting.

7 comments

Comment from: Sebastian Wieseler [Visitor]

Are you missing a ´? And you should replace it with $() -- so it should become $(echo $i | tr [:upper:])

But at least this doens't work out for me. :-(

As you can see it here:
$ echo "kickino" | tr -s [:lower:] [:upper:]
KICKINO

You had to specify both sets to convert it, I think.

Have a great day.

02/29/08 @ 16:19

Comment from: Thias [Member]

Yep, I may have miss the () as my file names were pretty simple...

02/29/08 @ 17:17

Comment from: Jadu Saikia [Visitor]

Two more ways from my side

$ ls | while read file
> do
> mv $file `echo $file|awk '{$1=tolower($1);print}'`
> done

$ ls | while read file
> do
> mv $file `echo $file | sed 's/.*/\L&/'`
> done

//Jadu
http://unstableme.blogspot.com/ (BASH blog)

03/16/08 @ 19:14

Comment from: pek [Visitor]