When it matters, a "well-written script" would have a line such as 

require 5.004;

[download]
or 
use 5.004;

[download]
and likewise for modules 
use Foobar 1.23 'baz';

[download]
...though I admit that this is one of those rules that are "observed in the breach".

the lowliest monk

In reply to Re: How to tell what version of Perl a script needs? by tlm
in thread How to tell what version of Perl a script needs? by Whitehawke

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