No, actually I need deal with these files twice. So I need to keep the array
of these files. But after the first time dealing with these files, the array
of these files had been changed.
On Sat, Dec 4, 2010 at 12:24 AM, Roche, Johnny <roc...@hmc.harvard.edu>wrote:
> Would this satisfy your desired output?
>
> my @ins = @ARGV;
> foreach(@ins) {
> open IN, $_;
> my $fn = $_;
> while(<IN>) {
> chomp;
> print "$fn\n";
> }
> close IN;
> }
>
> Johnny Roche
> Associate, Help Desk
> Harvard Management Company
> Tel: 617-720-6827
> Fax: 617-878-6827
> Email: roc...@hmc.harvard.edu
> -----Original Message-----
> From: Shawn H Corey [mailto:shawnhco...@gmail.com]
> Sent: Friday, December 03, 2010 11:16 AM
> To: Odin Liu; beginners@perl.org
> Subject: Re: A strange problem with array outside I/O
>
> On 10-12-03 11:12 AM, Odin Liu wrote:
> > Still confusing. We know that inner loop's $_ overwrite the outer loop's
> > $_ only in the inner loop. When the inner loop was over, the $_ would be
> > it was in outer loop before the inner loop begin. Outer $_ would be
> > restored by Perl automatically.
> >
> > But why this behavior changes when the inner loop is a diamond
> > operation? If it is a Perl syntax, then how can I open a list of file,
> > read their content, and then keep the file name list as it was?
>
> No, the behaviour is different because the inner loop is a while one. A
> local copy of $_ would be made if the inner loop was another foreach one.
>
>
> --
> Just my 0.00000002 million dollars worth,
> Shawn
>
> Programming is as much about organization and communication
> as it is about coding.
>
> The secret to great software: Fail early & often.
>
> Eliminate software piracy: use only FLOSS.
>
> --
> To unsubscribe, e-mail: beginners-unsubscr...@perl.org
> For additional commands, e-mail: beginners-h...@perl.org
> http://learn.perl.org/
>
>
>
> The information contained in this e-mail may be confidential and is
> intended solely for the use of the named addressee.
> Access, copying or re-use of the e-mail or any information contained
> therein by any other person is not authorized.
> If you are not the intended recipient please notify us immediately by
> returning the e-mail to the originator.
>
--
*Odin Liu
*
RD Engineer
work mail: liuyid...@baidu.com
blog: http://blog.odichy.org/
profile: https://www.google.com/profiles/odinushuaia
