Rename command tips for multiple files

Ddd an extension to multiple files in different location:

$ EXT=`date "+%m%d%y.%H.%M"`
$ find . -type f -name "name" | xargs -i mv {} {}.$EXT


For example rename all *.bak file as *.txt, enter:

$ rename .bak .txt *.bak


Remove all blank space with rename command:

$ rename "s/ *//g" *.mp3


To remove .jpg file extension, you write command as follows:

$ rename 's/\.jpg$//' *.jpg


To convert all uppercase filenames to lowercase:

$ rename 'y/A-Z/a-z/' *


source http://snippets.dzone.com/posts/show/6136