Re: OT: running a command on many files in many subdirectories

[Clive Standbridge <sink@ghaary.connectfree.co.uk>]

On Tue 28 Jan 2003 17:56:51 +0000(-0500), Levi Waldron wrote:
> I'm sure this is simple, but maybe someone here can help me do it in a few 
> minutes instead of hours.  I have a bunch of files in a bunch of 
> directories, and I want to run the same command on each of them.  For each 
> input file, the output file should have the same name except ending in .txt, 
> and the output files should be put a common directory.  ie,
> 
> java ImageInfo dir1/pic1.jpg > commondir/pic1.txt
> 
> etc, repeated over a bunch or directories and jpg files.  The subdirectories 
> only go one deep.  

Try this:
for f in */*.jpg ;do java ImageInfo $f > commondir/`basename $f .jpg`.txt ;done

If there are too many files for the command line then replace "for f in */*.jpg" with
find . -maxdepth 2 -name \*.jpg | while read f


> If this is difficult I could copy all the jpg files into a single 
> directory first with only a little bit of tedium.

No need for that.


I hope this helps.

-- 
Cheers,
Clive