From: Bil Kleb <W.L.Kleb@...>
Date: 2002-06-22T04:44:02+09:00
Subject: a Perl script's interaction with Ruby's system call

I'm trying to invoke a perl script (epstopdf) with Ruby's system command
on a x86 box running GNU/Linux (RH7.2) which begins with the following trickery:

 eval '(exit $?0)' && eval 'exec perl -S $0 ${1+"$@"}' && eval 'exec perl -S $0 $argv:q' if 0;
 use strict;

 # Change by Thomas Esser, Sept. 1998: The above lines allows us to find
 # perl along $PATH rather than guessing a fixed location. The above
 # construction should work with most shells.

but I am getting the old "Command not found" error since the trickery fails
to find perl.

If I instead tailor the system call to my particular installation of the epstopdf script
with 'perl /usr/bin/epstopdf', the system call works as expected.

Is there a way to use Ruby's system command with the more general 'epstopdf' system
call and the above style of perl trickery?

Thanks in advance,
-- 
Bil Kleb
NASA Langley Research Center
Hampton, Virginia, USA