This is experimental. I took davido's suggestion and expanded it a little. I tested it against gnuplot and perl. It won't work on all executables, so you'll need to play with it. 
#!/usr/bin/perl

use strict;
use warnings;
use SVN::Notify;

my $exe = SVN::Notify->find_exe('gnuplot');
system("$exe -V");

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In reply to Re: Get file version information in Perl by Khen1950fx
in thread Get file version information in Perl by salem

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