19990908: question about TITLE='' in GRDDISP

>From: weather <address@hidden>
>Organization: NMSU/NSBF
>Keywords: 199909082116.PAA05811 McIDAS GRDDISP shell

Robert,

Sorry I couldn't get to this yesterday, but I was fighting the SC5.0
problem (still am).

>I am having a small but irritating problem with one of my
>CGI scripts.  I guess it is partly a Unix shell question
>as well.  I would like the user to be able to title the
>image produced by GRDDISP in the CGI script (Bourne shell).
>The variable that contains the title that is passed is
>$WWW_txt.  So something like TITLE='$WWW_txt', but that of
>course is wrong and prints out just $WWWbtxt for the title.

This is likely due to the shell interpreting the single quotes to
mean to not evaluate the reference to the Unix environment variable
($WWW_txt).  I would try escaping the quotes in your script.  For the
Bourne shell, this would look like:

TITLE=\'$WWW_txt\'

>So I gave up and just tried to print no title, and 
>add that to the image later with Paint Shop Pro.  In a McIDAS
>session you simply do TITLE=''.  In the script, TITLE=''
>produces the default title (model, fcst hour..etc).  I can't
>get it to not write a title or to figure out how to pass
>the variable containing the title.  Any help you could
>provide would be much appreciated.

Try the above and let me know if it doesn't fix your problem.

Tom