From: Dave Bass <davebass@...>
Date: 2008-08-25T05:26:57+09:00
Subject: Re: Running an executable local file with a Ruby script??

Replace ./mkplots with a very simple executable (or script) which does 
something like writing to a file, including any error messages sent to 
stderr. Temporarily (!) give it maximal permissions, before reducing it 
to the same permissions as mkplots.

This will allow you to see whether the executable is actually being 
executed or not and whether any errors are being generated. In my 
experience there are often problems with permissions, especially if the 
script is being run by a web server.



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