Linux File & Folder Permissions

File & folder security is a big part of any operating system and Linux is no exception!

These permissions allow you to choose exactly who can access your files and folders, providing an overall enhanced security system. This is one of the major weaknesses in the older Windows operating systems where, by default, all users can see each other's files (Windows 95, 98, Me).

For the more superior versions of the Windows operating system such as NT, 2000, XP and 2003 things look a lot safer as they fully support file & folder permissions, just as Linux has since the beginning.

Together, we'll now examine a directory listing from our Linux lab server, to help us understand the information provided. While a simple 'ls' will give you the file and directory listing within a given directory, adding the flag '-l' will reveal a number of new fields that we are about to take a look at:

Creating Simple RSS Reader as an Android Application

RSS is a family of web feed formats used to publish frequently updated works. Such as blog entries, news headlines,audio and video in a standardized format. - wikipedia-

Basically RSS are xml files. We can read RSS files using applications called RSS Readers. In this post, I am going to write about how to create a simple RSS Reader application in Android platform.

In this example, I have used an external 'xml'(RSS) of the website.

RSS Link: http://www.mobilenations.com/rss/mb.xml

Installing Nodejs in Ubuntu

Simply execute the following commands in Ubuntu Terminal


sudo apt-get install python-software-properties python g++ make
sudo add-apt-repository ppa:chris-lea/node.js
sudo apt-get update

sudo apt-get install nodejs