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They are the default variables used by sort for their processing.
That is why you want to be careful if you are using the variables $a and $b and
playing with sort besides.
Wags ;) ps to get a descending sort then switch where a and b are
used and it now becomes a descending sort verses an ascending
sort.
-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]On Behalf Of Márcio Oliveira Sent: Thursday, July 29, 2004 12:04 To: [EMAIL PROTECTED] Subject: RE: [Perl-unix-users] sorting hash values this solution perfectly work to me:
foreach ( sort { $urls{$a} <=> $urls{$b} } keys %urls ) { print LOG "$urls{$_} $_\n"; } thank' to all;
but I'm a beginner in perl programing world and i'd like to know how the $a
and $b vars work in this case.
thank's again!
Márcio Oliveira
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