adding text to JPEGs, in bulk

[Todd Zullinger]

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

Tim wrote:
> I think I can work out how to handle a batch of files to add
> consistent text, now.  But I haven't worked out how I could extract
> "256" from a filename like "img_0256.jpg", yet.  The filenames are
> all the same length, so there's got to be some tool that'll let me
> strip characters 7, 8 & 9 out of the name.

Here are two ways that could be done.

num=`expr "img_0256.jpg" : "img_0\([0-9]*\).jpg"`
or
num=`echo "img_0256.jpg" | cut -c6-8`

Put into a for or while loop and season to taste. :)

- -- 
Todd        OpenPGP -> KeyID: 0xBEAF0CE3 | URL: www.pobox.com/~tmz/pgp
======================================================================
Nothing is so simple that it cannot be misunderstood.
    -- Teague's Paradox

-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.5 (GNU/Linux)

iQFDBAEBAgAtBQJFC4B2JhhodHRwOi8vd3d3LnBvYm94LmNvbS9+dG16L3BncC90
bXouYXNjAAoJEEMlk4u+rwzjAeYH/iZKaAFcHaNmm8Ta/gK3Fb8QApnfeT1PUI32
zQHryfBOeFAgSbtUYKN3i2vKH/EPaMZ90GrfNwb1uMZNLZiktxoNfAi23ikUGOiL
kuZG7xNDOkf4CmgDR7mhtE45LrKpkBBHtdx7hUMyH9uhO1imNS9P0zKNBHR5v7j4
NvqlaG2GqQgy0i8zNTjF+23JnXxXyNwqP/gnttabnH8Ac9k3War8HApjL6xzKE7a
QHzNONKxP6FVOOol1IhZystinX3SmNroXofUFDEPlxZDaDOt0J3uSDOA1cugLXlM
bDUEH9sbLJaS4C6IW7Asp5YxRy9tAse8WGf779/4g7OvdbMeyTA=
=SfVh
-----END PGP SIGNATURE-----