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Full Discussion: Comparing Version Numbers
Top Forums UNIX for Dummies Questions & Answers Comparing Version Numbers Post 302269320 by jim mcnamara on Wednesday 17th of December 2008 11:19:09 AM
Old 12-17-2008
You have to know ahead of time or lookup what the newest version is: off the net with maybe wget or from a file.. The OS does not know anything about what the newest version is.

I really do not understand what you are doing. If you are deploying something that requires version c of the OS (or some utility) on a box running version a, what do you intend to do in your code?

Code like that should abend with an error message complaining about versions, in the worst case.

A more user-friendly approach is to do what sysconf() does - learn about the system, then call code which is friendly to the environment. Find a way not to have to issue a nasty message. Especially if you want users to actually use the code.
 

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Net::Google::Code::AtomParser(3pm)			User Contributed Perl Documentation			Net::Google::Code::AtomParser(3pm)

NAME
Net::Google::Code::AtomParser - AtomParser with a parsing method for gcode DESCRIPTION
INTERFACE
new parse( $xml_content ) return( $feed, $entries ), $feed is a hashref like { 'title' => 'Issue updates for project net-google-code on Google Code', 'id' => 'http://code.google.com/feeds/p/net-google-code/issueupdates/basic', 'updated' => '2009-06-12T05:55:48Z' } $entries is an arrayref like [ { 'content' => '<pre>second comment </pre> ', 'name' => 'sunnavy', 'title' => 'Update 2 to issue 22 ("for sd test")', 'id' => 'http://code.google.com/feeds/p/net-google-code/issueupdates/basic/22/2', 'updated' => '2009-06-12T05:55:48Z' }, { 'content' => '<pre>first comment </pre> ', 'name' => 'sunnavy', 'title' => 'Update 1 to issue 22 ("for sd test")', 'id' => 'http://code.google.com/feeds/p/net-google-code/issueupdates/basic/22/1', 'updated' => '2009-06-12T05:55:22Z' }, ] AUTHOR
sunnavy "<sunnavy@bestpractical.com>" LICENCE AND COPYRIGHT
Copyright 2008-2010 Best Practical Solutions. This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself. perl v5.10.1 2010-01-29 Net::Google::Code::AtomParser(3pm)
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