If you can, use CGI::Carp qw/ fatalsToBrowser /;. You may also see more if you redirect STDERR to STDOUT. 

print `/opt/csw/bin/octave -qfH < $filename 2>&1`;

[download]

--Solo

--
You said you wanted to be around when I made a mistake; well, this could be it, sweetheart.

In reply to Re: Running Command Line Programs from a CGI Script by Solo
in thread Running Command Line Programs from a CGI Script by maslofer

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