Using the "Less Than" (-lt) switch on numbers with decimal places?


 
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Top Forums Shell Programming and Scripting Using the "Less Than" (-lt) switch on numbers with decimal places?
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Old 05-20-2009
Quote:
Originally Posted by Glyn_Mo
The problem with this though, is that if I have version 34 of a file deployed and somebody comes along and deploys version 29.1.1 of a file (which I don't won't to be deployed because it's an earlier version), the code will turn it into version 2911, which the script will think is a higher version number than 34...
You should normalize versions before comparing them as strings.

One way to normalize:
34 => 34.00.00
29.1.1 => 29.01.01

If normalization is not an option, you have to implement the exact rule that your mind applies when comparing versions.

Last edited by colemar; 05-20-2009 at 08:39 AM..
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