HOWTO: rename all files in lowercase

Pretty simple.

  1. If you don’t have a *NIX operating system, please skip this post.
  2. Create a script with this content: 
    #!/bin/sh
for f in *; do
g=`expr "xxx$f" : 'xxx\(.*\)' | tr '[A-Z]' '[a-z]'`
mv -n "$f" "$g"
done

    and call it “rename.sh”

  3. Give it execution permissions, typing: 
    chmod u+x rename.sh
  4. Execute the script from the directory where you have your files to rename
If you have two files, “Foo” and “foo“, you’ll be notified and no files will be overwritten. So, don’t worry about that, you won’t lose any information. To be sure, try it with a few files in “/tmp” directory.
Question? Suggestion? Comment! :)