The following was posted on the mosaic mail-list, I'll say no more,
just read and remember it when you start changing your mailcap file.

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From: mjw@alfonz.boltz.cs.cmu.edu
Subject: A bug report and explaination

A  correspondant has sent me the following bug report (automatically generated
by some debug code I put in amosaic.  I am sending it to the mailing list too,
so  the  general amosaic using public knows what to do if they hit this "bug".
(It's not actually a bug, as you will see below).

----report --------

 Please  send email to witbrock@cs.cmu.edu telling him that you passed through
the  unsupported  pipe  code  and  which  URL  it  happened  on.   say  '((cat
T:3ZAT3.0010.jpeg | egs:egsshow); /bin/rm -f T:3ZAT3.0 010.jpeg) &'Also say:

   file HTFWriter.c:HTSaveAndExecute line 480 compiled Oct 10 1994 01:27:08


---- end -----

OK,  I  finally found out what causes this about a month ago.  It happens when
people mis-configure their mailcap files by putting e.g.

     image/jpeg  egs:egsshow

instead of

     image/jpeg  egs:egsshow %s

in  the  former  case, mosaic doesn't know what to do with the file it got, so
it,  thinking that it belongs on unix, tries to pipe it into the viewer.  In a
future  version,  I  will probably just have it assume that it should make the
file  the  first  argument to the viewer program.  In the meantime, if you get
this bug, or one of your mates does, check that your mailcap file is correct.


Michael
(something is about to happen.... something wonderful)

p.s. mikef - please add this to the amosaic faq on the amosiac site.
p.p.s who ever maintains the big amosiac faq, please add this to that too.
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