l i n u x - u s e r s - g r o u p - o f - d a v i s
Next Meeting:
July 7: Social gathering
Next Installfest:
Latest News:
Jun. 14: June LUGOD meeting cancelled
Page last updated:
2001 Dec 30 16:57

The following is an archive of a post made to our 'vox-tech mailing list' by one of its subscribers.

Report this post as spam:

(Enter your email address)
Re: [vox-tech] Perl: setting default input channel?
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: [vox-tech] Perl: setting default input channel?

On Fri, 15 Sep 2000, Mark Kim wrote:

> I was originally thinking along the lines of:
>    $varname = <>;   # I read from STDIN
> I read something interesting.  Executing <> doesn't actually read from
> STDIN, but it first checks the arguments in @ARG, and if there are no
> arguments, it uses "-" (STDIN) but it opens the file pointed to by $ARG[0]
> if any exists.  Interesting...
> -Mark

Hi Mark,

I think it reads from @ARGV, not @ARG.  You piqued my interest and started
to play around with the variable.  You can alter the array @ARGV before
reading from <> and read from files not specified by the user on the
command line.  Usually, when the user specifies a file on the command
line, it will ignore STDIN, but you can put it back in!  Just do this:
unshift @ARGV, "-";
and it will read from STDIN first, and when you press ^D, it will read
from the other elements specified on the command line.

Hope this helps.

LUGOD Group on LinkedIn
Sign up for LUGOD event announcements
Your email address:
LUGOD Group on Facebook
'Like' LUGOD on Facebook:

Hosting provided by:
Sunset Systems
Sunset Systems offers preconfigured Linux systems, remote system administration and custom software development.

LUGOD: Linux Users' Group of Davis
PO Box 2082, Davis, CA 95617
Contact Us

LUGOD is a 501(c)7 non-profit organization
based in Davis, California
and serving the Sacramento area.
"Linux" is a trademark of Linus Torvalds.

Sponsored in part by:
EDGE Tech Corp.
For donating some give-aways for our meetings.