Hello dear Monks! I know that one can override built-in Perl functions via something like 
BEGIN {
 *CORE::GLOBAL::open = sub { warn "Captured: " . $_[1]; open $_[0], $_
+[1] }; 
}

[download]
Is there a way to override "-X" functions (-s,-d,-f...) similarly? Thanks!

In reply to Overriding "-s", "-f" and other -X functions by Doctrin

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