9 More Discussions You Might Find Interesting
1. Emergency UNIX and Linux Support
Hi,
I am running a perl script to automate a process and I keep running into a error can't find the "value"
Can't call method "value" on an undefined value at process_file.pl line 44.
file is CVS
cell is ifdfdxrfmp.ksh
Here is the script I have also attached it as well:
... (2 Replies)
Discussion started by: vpundit
2 Replies
2. Solaris
After a memory upgrade all network interfaces are misconfigued. How do i resolve this issue. Below are some out puts.thanks.
ifconfig: plumb: SIOCLIFADDIF: eg000g0:2: no such interface
# ifconfig eg1000g0:2 plumb
ifconfig: plumb: SIOCLIFADDIF: eg1000g0:2: no such interface
# ifconfig... (2 Replies)
Discussion started by: andersonedouard
2 Replies
3. Programming
Differentiate between the message and method. (2 Replies)
Discussion started by: robinglow
2 Replies
4. Shell Programming and Scripting
Good morning all....
I have been learning Perl for about 2 months now and I guess I am getting there as much as I can however I am really stuck. I have a Perl script called postEvent.pl which uses a package called event.pm. PostEvent.pl depends on a meithod inside event.pm called isSuccess to... (0 Replies)
Discussion started by: LRoberts
0 Replies
5. Shell Programming and Scripting
In my code, I know I can write...
if ( defined &test_sub ) {
test_sub();
} else {
print "Subroutine doesn't exist";
}
This tests the existence of the test_sub subroutine without actually calling it.
If, though, I replace test_sub with a package method...
if ( defined... (1 Reply)
Discussion started by: JerryHone
1 Replies
6. UNIX for Dummies Questions & Answers
hi
i am not getting what exactly bless function do in perl explanation in perldoc is not very clear i tried to search on google but i am getting confused or rather not getting at all. can anybody explain in short what it does in following example as well as in general ?
sub new {
my... (1 Reply)
Discussion started by: zedex
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7. Infrastructure Monitoring
Hello,
I have a problem with package and name space.
require "/Mehran/DSGateEngineLib/general.pl";
use strict;
sub System_Status_Main_Service_Status_Intrusion_Prevention
{
my %idpstatus;
my @result;
&General_ReadHash("/var/dsg/idp/settings",\%idpstatus);
#print... (4 Replies)
Discussion started by: Zaxon
4 Replies
8. Programming
Which is the perferred method of installing Perl modules on a Unix system? Is is CPAN or manually installing them via a tar file? Also can anyone point me in the right direction to a decent "how to" on configuring CPAN and how to perform custom installs from a tar? thanks:b: (2 Replies)
Discussion started by: metallica1973
2 Replies
9. Shell Programming and Scripting
Guys, anyone familiar with this FileProp Store Method.. Im having Compilation Error whenever a value is stored into the tied hash. Run time error
sub STORE {
my ($self, $key, $value) = @_;
my $name = $self ->{name};
unless ($PROPS{$key} and -w $name){
croak "Can't... (1 Reply)
Discussion started by: killerserv
1 Replies
Damn(3pm) User Contributed Perl Documentation Damn(3pm)
NAME
Acme::Damn - 'Unbless' Perl objects.
SYNOPSIS
use Acme::Damn;
my $ref = ... some reference ...
my $obj = bless $ref , 'Some::Class';
... do something with your object ...
$ref = damn $obj; # recover the original reference (unblessed)
... neither $ref nor $obj are Some::Class objects ...
DESCRIPTION
Acme::Damn provides a single routine, damn(), which takes a blessed reference (a Perl object), and unblesses it, to return the original
reference.
EXPORT
By default, Acme::Damn exports the method damn() into the current namespace. Aliases for damn() (see below) may be imported upon request.
Methods
damn object
damn() accepts a single blessed reference as its argument, and returns that reference unblessed. If object is not a blessed reference,
then damn() will "die" with an error.
bless reference
bless reference [ , package ]
bless reference [ , undef ]
Optionally, Acme::Damn will modify the behaviour of "bless" to allow the passing of an explicit "undef" as the target package to invoke
damn():
use Acme::Damn qw( bless );
my $obj = ... some blessed reference ...;
# the following statements are equivalent
my $ref = bless $obj , undef;
my $ref = damn $obj;
NOTE: The modification of "bless" is lexically scoped to the current package, and is not global.
Method Aliases
Not everyone likes to damn the same way or in the same language, so Acme::Damn offers the ability to specify any alias on import, provided
that alias is a valid Perl subroutine name (i.e. all characters match "w").
use Acme::Damn qw( unbless );
use Acme::Damn qw( foo );
use Acme::Damn qw( unblessthyself );
use Acme::Damn qw( recant );
Version 0.02 supported a defined list of aliases, and this has been replaced in v0.03 by the ability to import any alias for "damn()".
WARNING
Just as "bless" doesn't call an object's initialisation code, "damn" doesn't invoke an object's "DESTROY" method. For objects that need to
be "DESTROY"ed, either don't "damn" them, or call "DESTROY" before judgement is passed.
ACKNOWLEDGEMENTS
Thanks to Claes Jacobsson <claes@surfar.nu> for suggesting the use of aliases, and Bo Lindbergh <blgl@cpan.org> for the suggested
modification of "bless".
SEE ALSO
bless, perlboot, perltoot, perltooc, perlbot, perlobj.
AUTHOR
Ian Brayshaw, <ian@onemore.org>
COPYRIGHT AND LICENSE
Copyright 2003-2012 Ian Brayshaw
This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself.
perl v5.14.2 2012-02-14 Damn(3pm)
method bless perl