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Object oriented programming perl

Posted 06-06-2011 at 02:55 PM by karthik3152

perl Object Oriented:
There are many chances that you may get confused with Perl Object Programming

To make the point clear let us first look at references at Perl

@friends = ("Rachael","Phoebs");
%animals = ('donald' => 'duck','mickey' => 'mouse' );

To intiaize references to a variable use:
In case of array:
$ref = \@friends
In case of hashes
ref = \%animals;
In case...
LQ Newbie
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Views 482 Comments 0 karthik3152 is offline

OpenSUSE 11.4 continued

Posted 06-05-2011 at 07:58 PM by TwinReverb

Today I continued with a fresh 11.4 DVD 32bit of OpenSUSE. During installation I found the option to go with a LVM encrypted (i.e. LUKS+LVM) so I went with that after deleting all partitions on the machine. (I found out after install that it chose 256bit encryption. A little overboard for a netbook, but I don't mind so much.

So I got it installed, copied stuff back over from my backup external hard drive, and proceeded.

Then the NetworkManager icon disappeared (segfault...
Posted in Uncategorized
Views 2417 Comments 1 TwinReverb is offline

Slacker installs OpenSUSE 11.4

Posted 06-05-2011 at 04:46 AM by TwinReverb

So I figured I'd try OpenSUSE 11.4 on my netbook (Asus 900A) today, and write down my experience with it as I go.

First, when booting the installer, I noticed that during the configuration phase, when partitioning my hard drive, it picked some odd options (to me), like putting root and /home on extended partitions, etc. I thought to myself, no big deal, I'll custom partition with the root size it had decided (5GB). Well /dev/sda2 was already a LUKS but I told it I wanted to start...
Posted in Uncategorized
Views 635 Comments 0 TwinReverb is offline

RPM commands

Posted 06-03-2011 at 03:41 AM by blue_print
Updated 06-03-2011 at 04:23 AM by blue_print

RPM package is a powerful utility to manage the software in all major Linux distributions. RPMs can be used to,
  • Install packages
  • Remove packages
  • Upgrade packages
  • Verify packages

Here are some useful command to manage RPM packages,

1. Getting detailed information about the package httpd

rpm -qi httpd
2. Determining which package installed the file /etc/httpd/conf.d/httpd-portal.conf,

Posted in Linux Basics
Views 848 Comments 0 blue_print is offline

hiding the GUI of an application

Posted 06-03-2011 at 02:11 AM by neonsignal

The GUI of an X windows application can be 'hidden' by creating a dummy frame buffer:
Xvfb :display-number -screen 0 1x1x8
This frame buffer can then be used to run the application:
DISPLAY=:display-number application
Senior Member
Posted in Uncategorized
Views 572 Comments 0 neonsignal is offline


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