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Normally, its very rare for 2 different partitions to have the same UUID. But there may be cases where you clone a partition using DD or Clonezilla and the clone resides on the same machine – different physical hard drive or partition. And in this case, you will need to change the UUID of a partition.

we will see several command methods with which we can read 2 files alternatively line by line, which means line #1 from file #1 then line #1 from file 2, then line #2 from file #1 then line #2 from file 2 ... and so on. This way of reading will produce a combined file output in which lines are alternated between the files.

Wearable gadgets have become a real trend. While the other giants like Google, Apple, Microsoft and Samsung are busying with their wearable gadget plans, Sony already has a smartwatch in the market. Although the small device didn’t get too much attention from the tech fans when it launched but it may get a little more from now with Sony’s recent announcement that its smartwatch has now become open-sourced.

4 different ways to print file content in reverse order

The project, which is called Raspberry Pi Cloud, is the idea of four lecturers at the University’s School of Computing. The four doctors believed that the knowledge about the cloud will play a very important role in their students’ future as IT professionals. But it was hard for researchers and students to develop a good practical knowledge due to the secrecy nature of how cloud computing infrastructure works.

At the recent Red Hat Summit in Boston, IBM, the giant international computer and server company, has announced its plan to expand the adoption of Linux accross its enterprise. There will be two new Power Systems Linux Centers in Austin and New York and support for Kernel-based Virtual Machine (KVM) will be extended to its Power Systems portfolio of server products.

Here is a little trick to close the terminal automatically after a certain period of inactivity.

Firefox browser in Linux uses 2 search engines by default, DuckDuckGo in the address bar and Yahoo Search in the search bar. However, many people still prefer Google over these 2 search engines. One work-around method is to use "!g", "!i" with DuckDuckGo to get the result from Google for normal searches and image searches. But if you still want to change the default search engines of Firefox in Linux Mint 15 to Google search, here is how to do so:

By default, the Menu in Linux Mint 15 MATE will show either the favorite applications or the applications list when you launch it up, depending on its last session. If you prefer to always see the favorite applications, you just need a little tweak.

Long ago, I wrote an article about the tools to check hardware specs ( and another article about inxi ). But these tools are to use in the terminal only. So if you need some GUI tool to check the hardware info in Linux, here are my 2 favorite GUI tools you can use..

If you have other partitions than just the linux partitions in your computer, you will sometimes need to automount them at startup, for showing up on your conky config, or continuing a torrent download .. etc. With the old releases of Ubuntu and Linux Mint, the common advice you will find is to use pysdm, a GUI tool, to automount the partitions. However, since Ubuntu 12.10, pysdm has been removed from the repositories so I will teach you a trick to automount partitions without installing anything.

Last year, I installed and wrote a review for Linux Mint 13 Maya, the MATE version. It had worked really well on my laptop so even when Linux Mint 14 "Nadia" was released, I still kept using Maya. But after a year, I think its the time for an upgrade, and on the same occasion that Linux Mint 15 Olivia was recently out, I decided to download and install the new Linux Mint 15, MATE version.

Although a command line isn't a necessity anymore in modern desktop Linux distributions, it is still being used very often. And with various text-based applications, you can perform a lot of tasks within the terminal, from just running some basic commands or edit some text files to more complicated tasks like irc chatting, browsing the internet or even watching media. And just like any other Linux application, there are a lot of Linux terminal emulators around to choose. I've used quite many and here is a list of my favorite Linux terminal emulators.

Wardriving is the act of searching for Wifi networks by a someone on a vehicle, using a laptop, smartphone or personal digital assistant. A 22 year old IT security consultant and motorcycle enthusiast from New Zealand, Denis Andzakovic, has taken wardriving to a new level of coolness, with the help of the mighty tiny Raspberry Pi.

You can do calculation stuffs easily with bash on the command line, however it isnt very intuitive. Bash still works well with some simple calculations but in case you want to perform more complicated calculations, this may become a real hassle. And that is why bc is a better tool for you to perform calculating on the command line. The tool bc can do much more than bash for you and its syntax is ways easier.

Joshua Kiepert, a PhD candidate from Boise University, has built an awesome 32-way cluster from Raspberry Pis. Although clusters from Pi's have been made before, and even much larger, this is still a seriously cool project.

The tee command is a little tool which is very useful but often overlooked. The function of tee doesnt sound very exciting, it was created for only one purpose: write STDIN to STDOUT and a file. But tee actually can do a lot for you. Basically if you want to redirect STDOUT of a program as well as printing it to the screen, tee is the right tool to use.

In case you have never heard about Emmabuntus before, it is a distro based on Xubuntu and according to the email I got, the aim of Emmabuntus is to be user-friendly and light-weight so it can be used on old computers.

Vim is always my favorite text editor. I've been using Vim for over 2 years and still learning it. If you want to use Vim, the first thing you will need to know is how to navigate in Vim, since it is text-based.

htop is an ncurses process viewer for Linux. It is somehow similar to top but much better. In this article, I will enumerate several useful tricks with htop. These tricks will be useful for those who work as a sysadmin.