Re: Can I extract a Hash element by passing a variable to the hash?

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.

Comment on Re: Can I extract a Hash element by passing a variable to the hash? Select or Download Code

Replies are listed 'Best First'.
Re^2: Can I extract a Hash element by passing a variable to the hash? by Anonymous Monk on Jan 27, 2006 at 21:28 UTC
Thanks, that did the trick.	[reply]
Re^3: Can I extract a Hash element by passing a variable to the hash? by ikegami (Patriarch) on Jan 27, 2006 at 21:39 UTC
As I meant to mention that in my original post, you could just use localtime. `my $slot = (localtime)[6]; # 0..6 for Sun..Sat if ($slot == 6) { $slot = undef; # undef for Sat. elsif ($slot == 5) { $slot = 6; # 6 for Fri. } print "Slot Number is $slot\n";` [download]	[reply] [d/l]