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Full Discussion: broken pipe?
Top Forums UNIX for Dummies Questions & Answers broken pipe? Post 21138 by gusla on Sunday 12th of May 2002 12:36:35 AM
Old 05-12-2002
Question i wanted to pipe to perl!

thks Freelive.

my initial purpose is wanted to pipe the files to a perl program.

see, say my perl program is getfile.pl (taking file names as argumemnts)
Code:
# getfile.pl
#!/usr/bin/perl -w
 while ($ARGV = shift)
 {
        print "\nprocessing $ARGV...";
        if (-d $ARGV)
        {
           print "\n$ARGV is a DIR\n";
         }
 }

if i use:
> getfile.pl f1 f2 dir1 dir2
to execute the perl file, it's working.

However, if i use:
> ls | getfile.pl OR >find * | getfile.pl
it's not working. It wouldn't recoglise the input argument (@ARGV is empty)

also
>getfile.pl < f1 f2 dir1 dir2

it only recognise f2, dir1, dir2. The first argument f1 is missing. (ie. @ARGV only contains f2, dir1 and dir2)


WHY?

appreciate as usual

Gusla
Smilie

added code tags for readability --oombera

Last edited by oombera; 02-18-2004 at 12:41 PM..
 

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Perl::Critic::Command(3pm)				User Contributed Perl Documentation				Perl::Critic::Command(3pm)

NAME
Perl::Critic::Command - Guts of perlcritic. SYNOPSIS
use Perl::Critic::Command qw< run >; local @ARGV = qw< --statistics-only lib bin >; run(); DESCRIPTION
This is the implementation of the perlcritic command. You can use this to run the command without going through a command interpreter. INTERFACE SUPPORT
This is considered to be a public class. However, its interface is experimental, and will likely change. IMPORTABLE SUBROUTINES
"run()" Does the equivalent of the perlcritic command. Unfortunately, at present, this doesn't take any parameters but uses @ARGV to get its input instead. Count on this changing; don't count on the current interface. TO DO
Make "run()" take parameters. The equivalent of @ARGV should be passed as a reference. Turn this into an object. AUTHOR
Jeffrey Ryan Thalhammer <jeff@imaginative-software.com> COPYRIGHT
Copyright (c) 2005-2011 Imaginative Software Systems. All rights reserved. This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself. The full text of this license can be found in the LICENSE file included with this module. perl v5.14.2 2012-06-07 Perl::Critic::Command(3pm)
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