The reason why you don't get the uninitialized warning in the 2nd and 3rd
examples below is that your print is within the for loop. Since both @files
and keys %files contain nothing, the innards of the for loop NEVER get
executed. Therefore, the print is not attempted at all for examples 2 and 3.

-ZO

"JupiterHost.Net" <[EMAIL PROTECTED]> wrote in message ...
>
> $ perl -mstrict -we 'my $files;print $files;'
> Use of uninitialized value in print at -e line 1.
> $ perl -mstrict -we 'my @files;print $_ for @files;'
> $ perl -mstrict -we 'my %files;print $_ for keys %files'
> $



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