Getopt::Std creates the $opt_n variables. To use it with use strict; in
place you must use the use vars ($opt_n); pragma as well. or just use
the getopts('n', \%opts); call. Then you can say $opts{n}.
On Wed, 2002-03-27 at 16:46, Agustin Rivera wrote:
> How would that work with use strict;? I tried it once and when I declared my
> $opt_n before using getopts, it wouldn't work.
>
> Agustin Rivera
> Webmaster, Pollstar.com
> http://www.pollstar.com
>
>
>
> ----- Original Message -----
> From: "Timothy Johnson" <[EMAIL PROTECTED]>
> To: <[EMAIL PROTECTED]>; "Beginners Perl Mailing List"
> <[EMAIL PROTECTED]>
> Sent: Wednesday, March 27, 2002 1:32 PM
> Subject: RE: Testing for filehandles
>
>
> >
> > You'd probably have better luck testing for the open() command's success
> >
> > use Getopts::Std;
> > getopts("n");
> > if($opt_n){
> > open(OPT_LOG,">/tmp/foo.txt") || die "Could not open foo.txt!\n";
> > }
> >
> > -----Original Message-----
> > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]
> > Sent: Wednesday, March 27, 2002 12:18 PM
> > To: Beginners Perl Mailing List
> > Subject: Testing for filehandles
> >
> >
> > Hello, All:
> >
> > I've looked around for an answer to this (The Camel Book, The Ram Book,
> > perldoc, google.com, etc.) but can't find a thing: Is it possible to test
> > for the existence of a filehandle?
> >
> > I've got a small script that <optionally> opens a filehandle. If that
> > filehandle exists, I'd like to print to it. Otherwise, don't. e.g.,
> >
> > use Getopts::Std;
> > getopts("n");
> > open(OPT_LOG,">/tmp/foo.txt") if ($opt_n);
> > while (<>) {
> > print OPT_LOG $_ if OPT_LOG;
> > }
> > close(OPT_LOG) if OPT_LOG;
> >
> > --
> > Eric P.
> > Los Gatos, CA
> >
> >
> > --
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> >
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