in reply to setting hash keys by array
See Re: descending a tree of hash references for a discussion of the same problem. Most of the solutions in this thread are handy, but sometimes it's useful to be able to wrap it into a subroutine.
perl -pe '"I lo*`+$^X$\"$]!$/"=~m%(.*)%s;$_=$1;y^`+*^e v^#$&V"+@( NO CARRIER'
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In Section
Seekers of Perl Wisdom