[FWTools] batch gdal_translate ??

[Matt Wilkie]

Hi Garret,

Interactively on the command line, this will search all subdirectories 
and create a .jpg in the same place as each .sid:

    for /r %g in (*.sid) do gdal_translate -of jpeg "%g" "%~dpng.jpg"

the '/r' means recursive,
the g in '%g' can be any letter,
the '%~n' means use only the name, 'p' is path, 'd' is drive letter
the quotes "" are for embedded spaces etc.

To test your command before running, preface with '@echo'

    ...do @echo gdal_translate ...

In a batch file, double up the percents '%%g':

    for /r %%g ... do ..%%g %%~dpng.jpg

more resources here:
http://www.ss64.com/nt/for_r.html
http://www.ss64.com/ntsyntax/parameters.html

cheers,

matt wilkie
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Garret Wais wrote:
> Hello,
> I would like to create a bat file for gdal_translate.  I have about one 
> thousand sid files that I would like to convert to jpg, I know I can 
> use, "gdal_translate -of JPEG FILENAME.sid OUTPUT.jpg" to do this but 
> doing that 1000 X's would not be efficient (or fun). 
> I know there is a way to write something like:
> 
> for file in *
> do input=`echo $file
> etc etc.
> 
> I just cant remember exactly how it should be written.  If anyone can 
> help that would be great.
> 
> thank you,
> Garret
> 
> 
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