This works for me from the command line. I like the "arrow" syntax for
datastructures, as it allows me mind to see what's going on (which is hard for me to
do sometimes with datastructures).
perl -e "$name{adams}{alice}='HELLO WORLD'; print $name{adams}->{alice};"
The camel book has a ton of stuff on structures, and you may want to check out:
perldoc perlreftut
-and-
perldoc perlref
HTH,
Matt
--- Pete Emerson <[EMAIL PROTECTED]> wrote:
> Suppose I have a two dimensional hash:
> $name{Adams}{Alice}=1; $name{Adams}{Bob}=1; $name{Bull}{Adam}=1; etc.
>
> Given the first key, is there a way to pull out a second key, if I don't
> care which one? Right now, I do:
> foreach my $first (keys %{$name{Adams}}) {
> $target=$first;
> last;
> }
>
> but it seems silly to have to run a loop like that and then cut out of
> it after the first iteration. Thanks!
> Pete
>
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