http://bradfitz.com/programming/hacks/nrename
$ ~/bin/nrename
nrename [opts] <directory>
OPTIONS:
--dry-run -n Dry-run, just show what it would've done
--verbose -v Shows renames as they happen
DESCRIPTION:
Renames all necessary files in a directory with respect to numbers in
their filenames such that when they sort alphabetically later, their
alphabetic order is the same as their numeric order. Essentially it
just zero-pads numbers within filenames where needed, but it can deal
with any number of digits anywhere in the filename. For instance, these
files:
20_foo_5.dat
20_foo_20.dat
5_foo_6.dat
Would normally sort:
20_foo_20.dat
20_foo_5.dat
5_foo_6.dat
Which is entirely wrong. What nrename will do is:
05_foo_06.dat
20_foo_05.dat
20_foo_20.dat
Which is what you presumably wanted.
AUTHOR:
Brad Fitzpatrick <brad@fitzpat.com> 