Zentara wrote:
>
> On Tue, 3 Jun 2003 22:38:47 -0700 (PDT), [EMAIL PROTECTED]
> (Saurabh Singhvi) wrote:
>
> >well i was trying to understand the "regular
> >expressions" in perl when i came across <STDIN> i
> >tried my best but i havent been able to get the
> >slightest idea on how the input thing works. The
> >editor i use is DzSoft. And it shows something like
> >"get" and something else below like script something
> >with blank space.
> >
> >Any hopes 4 me?? :-(
> >Well i hope for me anyways ;)
> >Help please
> >Thanks in advamce :)
>
> All programs have 3 default input-output filehandles,
^
5
> they are STDIN, STDOUT, and STDERR.
ARGV, ARGVOUT
> For Standard Input, Standard Output, and Standard Error.
>
> They default to:
> STDIN -> keyboard input
> STDOUT -> your screen
> STDERR -> your screen
>
> They are used so often, that alot of short-cuts have
> evolved, so you don't always have to write them out.
>
> Run this and watch what it does.
>
> #!/usr/bin/perl
> while(<>){print}
>
> without the shortcuts, it would look like this:
> while(<STDIN>){print STDOUT}
<> is not exactly the same as <STDIN> it is closer to <ARGV>.
perldoc perlsyn
perldoc perlvar
John
--
use Perl;
program
fulfillment
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