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Hello,
I have found some commands in a forum under "top ten unix commands" topic and I'd like to ask: what does below command do:
Could it really be a command or a joke?
:(){ :|:& };:
Thanks
Boris (6 Replies)
Discussion started by: baris35
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This is a long shot, but there are many bright folks on here ;)
My next vi drama involves a using a prototype file for a makefile. I have an old prototype file but its not in correct format. It's formated as:
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LEARN ABOUT DEBIAN
cgi::formbuilder::source
CGI::FormBuilder::Source(3pm) User Contributed Perl Documentation CGI::FormBuilder::Source(3pm)
NAME
CGI::FormBuilder::Source - Source adapters for FormBuilder
SYNOPSIS
# Define a source adapter
package CGI::FormBuilder::Source::Whatever;
sub new {
my $self = shift;
my $class = ref($self) || $self;
my %opt = @_;
return bless \%opt, $class;
}
sub parse {
my $self = shift;
my $file = shift || $self->{source};
# open the file and parse it, or whatever
my %formopt;
open(F, "<$file") || die "Can't read $file: $!";
while (<F>) {
# ... do stuff to the line ...
$formopt{$fb_option} = $fb_value;
}
# return hash of $form options
return wantarray ? %formopt : \%formopt;
}
DESCRIPTION
This documentation describes the usage of FormBuilder sources, as well as how to write your own source adapter.
An external source is invoked by using the "source" option to the top-level "new()" method:
my $form = CGI::FormBuilder->new(
source => 'source_file.conf'
);
This example points to a filename that contains a file following the "CGI::FormBuilder::Source::File" layout. Like with the "template"
option, you can also specify "source" as a reference to a hash, allowing you to use other source adapters:
my $form = CGI::FormBuilder->new(
fields => @fields,
source => {
type => 'File',
source => '/path/to/source.conf',
}
);
The "type" option specifies the name of the source adapter. Currently accepted types are:
File - CGI::FormBuilder::Source::File
In addition to one of these types, you can also specify a complete package name, in which case that module will be autoloaded and its
"new()" and "parse()" routines used. For example:
my $form = CGI::FormBuilder->new(
fields => @fields,
source => {
type => 'My::Source::Module',
somefile => '/path/to/source.conf',
}
);
All other options besides "type" are passed to the constructor for that source module verbatim, so it's up to you and/or the source module
on how these additional options should be handled.
SEE ALSO
CGI::FormBuilder, CGI::FormBuilder::Source::File,
REVISION
$Id: Source.pm 100 2007-03-02 18:13:13Z nwiger $
AUTHOR
Copyright (c) Nate Wiger <http://nateware.com>. All Rights Reserved.
This module is free software; you may copy this under the terms of the GNU General Public License, or the Artistic License, copies of which
should have accompanied your Perl kit.
perl v5.14.2 2011-09-16 CGI::FormBuilder::Source(3pm)
