I am trying to make a hash slice that only includes the keys "SHELL" and
"DB" for %unix - using a reference. How do I reference specific elements in
a % table? thanks
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#! /usr/bin/perl -w
%unix = (
"SHELL" => "/bin/csh",
"PAGER" => "more",
"DB" => "mysql");
$rhash =\%unix;
%slice = keys((%$rhash));
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