Yes you can. If it doesn't work, it's probably because $RUNDAY probably contains "Friday\n" rathen than "Friday". Fix: chomp($RUNDAY = <DAY>);.

I have some suggestions for improvements. Instead of using a temporary file, you can use backticks. Uppercase variable bames usually indicate a constant. You don't need to put numbers in quotes, usually. 

my %BACKUP_DAY = (
   Sunday    => 0,
   Monday    => 1,
   Tuesday   => 2,
   Wednesday => 3,
   Thursday  => 4,
   Friday    => 6,
);

chomp(my $runday = `/bin/date +%A`);
my $slot = $BACKUP_DAY{$runday};
print "Slot Number is $slot\n";

[download]

By the way, you're missing Saturday. I don't know if that's intentional.

For future reference, place <c> and </c> around any code you post to make it readable.

In reply to Re: Can I extract a Hash element by passing a variable to the hash? by ikegami
in thread Can I extract a Hash element by passing a variable to the hash? by buster_balz

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