Thanks for all those would responded, plenty of advice there...
The reason I wanted a bash, script was just for a very quick and nasty
solution to check the files the 'file *' solution work very nicely, and on a
closer look it lead me to the 'magic' file, which had a good description of
what defines what a good postscript header looks like. As it happens, in the
long run I'll write something in Java, as it's for a web based app. and has
a java element anyway.
Below is the definition in the magic file... man file will give you the
knowledge to read it.
# PostScript, updated by Daniel Quinlan (quinlan at yggdrasil.com)
0 string %! PostScript document text
>2 string PS-Adobe- conforming
>>11 string >\0 at level %.3s
>>>15 string EPS - type %s
>>>15 string Query - type %s
>>>15 string ExitServer - type %s
# Some PCs have the annoying habit of adding a ^D as a document separator
0 string \004%! PostScript document text
>3 string PS-Adobe- conforming
>>12 string >\0 at level %.3s
>>>16 string EPS - type %s
>>>16 string Query - type %s
>>>16 string ExitServer - type %s
0 string \033%-12345X%!PS PostScript document
Maintained by the ILUG website team. The aim of Linux.ie is to
support and help commercial and private users of Linux in Ireland. You can
display ILUG news in your own webpages, read backend
information to find out how. Networking services kindly provided by HEAnet, server kindly donated by
Dell. Linux is a trademark of Linus Torvalds,
used with permission. No penguins were harmed in the production or maintenance
of this highly praised website. Looking for the
Indian Linux Users' Group? Try here. If you've read all this and aren't a lawyer: you should be!