Posts

Adding RedHat DVD as Repository

When we try out a new linux OS its always a pain to download and install all the software and  add packages we needs on that. Its even worse if you don’t have an unlimited connection. But actually most of the software we need is already there in the CD/DV …

Ontology Linked Data

The following is a Assignment on Ontology and Linked Data and the evolution of data which lead to the use of ontology in web. Thanks to my teammates Bharath Gowda and Sravani Thota for working on the same. Ontology And Linked Data An ontology formally r …

Important MySQL DBA Interview Questions

Here are a few sets of interview questions expected for MySQL DBA position.These are compilation of the usual questions from various DBA texts: What is Log Switch? – The point at which ORACLE ends writing to one online redo log file and begins writing to …

Find Invisible Users In Gmail

Finding who is invisible is something that I always wanted to do.It’s always fun to ping a person who feels none can see him/her online. While studying XMPP protocol I found out that even when the person is offline the chat client knows that person is onli …

Automatic Desktop Wallpaper Changer for Linux

I have a lot of wallpaper that I wanted to switch automatically. After a lot of search i found that there a command way to control all the gnome settings. So I the command I used is “gconftool-2″. So code is like:




#!/bin/bash
folder="/home/rsr …

Automatic Command Archive

The default command storing size of ubuntu is 500 commands. It stores the commands in home folder in the file “.bash_history” . The problem is 500 commands is too short of a size. One method is to increase the command size to a large value by changing the  …

BSNL Dataone Auto Downloader

Bsnl(India) provides an account that has 2am to 8am unlimited download. It was not easy to wake up at 2am and switch on the computer and sleep again. So I tried to find a method to switch on the computer automatically at 2am and download and shutdown at 8a …

“Send To” in Linux for Nautilus

It’s been a common practice among the windows users to right click and search for “Send To” option when a file needs to copied to the USB or any other Drive. Why spare me, even i used to do this while using windows, when to my astonishment i found that the …

Print Array in PHP

There are various methods and commands used in PHP to print an array of elements. They are different in the way they print the array elements. I will cover three main ones I usually use. Lets assume an array as follows to explain the various types of print …

Web page Performance for a Blog – Part 1

I have always under the notion that page performance for big websites or websites that have a sole server and various resources like CDN and load balancers. So I wanted to know if this is true. I set out to try web page performance my blog. I just wanted t …