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What is "0 but true" and why is it

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What is "0 but true" and why is it

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This small tutorial will tell you why the Perl uses the "0 but true" return value when it executes some system functions. So this is a special way to show a good exit of function call.
Platform(s): n/a
Date: Sep, 27 2002
Author: http://www.webclass.ru/tut.php?tut=14
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