I looked at a few jpegs and they all start with the same 10 characters so you could test on that. What language is this script written in? if it is Perl I should be able to dig up some code to do this. From what I understand Jpeg is a streaming format so testing if the whole file is corrupt could be tricky except visually.
> pants:/public_html/jubilee# cat index.html | jpegtopnm > Not a JPEG file: starts with 0x3c 0x21 > > pants:/public_html/jubilee# cat cover.jpg | jpegtopnm > /dev/null > jpegtopnm: WRITING PPM FILE > > Hows that? > > On Fri, 2002-05-31 at 13:30, Kerry Baker wrote: > > Hi all, > > I am writing a script that downloads a .jpg file from a web site and > > verifies it is not corrupt. > > Does anyone know of a command line utility that checks the validity of a > > jpeg file? > > > > Thanks. > > > > Kerry. > >
