How to rename files in linux shell using regexp?

Question

I have some files:

/var/www/media/0001/0001_123456_12.jpg
/var/www/media/0002/0002_123456_12.jpg
/var/www/media/0003/0003_123456_12.jpg

and I want to rename them to:

/var/www/media/0001/0001_test.jpg
/var/www/media/0002/0002_test.jpg
/var/www/media/0003/0003_test.jpg

My idea was to find the first _ , remove the rest of the file until the . then add test .

Any ideas?

Answer 1

这是perl中的一个解决方案 ，允许您使用正则表达式。

Answer 2

find /var/www/media/ -name \*.jpg -exec sh -c '
  a=$(echo {} | sed s/_123456_/_/);
  [ "$a" != "{}" ] && mv "{}" "$a" '

You find all jpg files in the /var/www/media and run for each file the command:

a=$(echo {} | sed s/_123456_/_/)
[ "$a" != "{}" ] && mv "{}" "$a"

After this command, the a variable has rewritten name of the file inside:

a=$(echo {} | sed s/_123456_/_/)

The we compare the a variable and the realname ( {} ), and they are not equal the file must be renamed.

Answer 3

If you can install the mmv package, then these operations become easy. With mmv , you can do what you want with:

cd /var/www/media
mmv '*/*_123456_*.jpg' '#1/#2_test.jpg'

Here is the mmv manpage: http://manpages.ubuntu.com/manpages/lucid/man1/mln.1.html