Thursday, 29 May 2014

Krusader File Manager for Linux OS

Krusader is an advanced orthodox file manager for KDE and other Unix/Linux environment similar to GNOME or Midnight Commander for Linux or Total Commander for Windows. Krusader is developed by the Krusader Krew and is published under GNU General Public License. Krusader's user interface is based on orthodox file manager which has two windows called panels where either one of the panel is active and the other is inactive.

Main features of Krusader File Manager
Extensive archive handling

Mounted file system support

File transfer with FTP

Advance search modules

Internal viewer and Editor

Directory Synchronization

File content comparisons

Powerful batch renaming

File encryption and decryption

Built in disk usage tool etc.

Supporting a wide variety of archive formats, Krusader file manager is highly customizable, user friendly and have a pleasant look.

Installing Krusader on various Linux Distributions

Debian, Ubuntu, Mepis

apt-get install krusader


yum install krusader


urpmi krusader


emerge krusader

You can download the stable and beta version of Krusader file manager get-krusader.

Download krusader documentation pdf file

Krusader has a detailed documentation and you can download the pdf documentation here

Tuesday, 27 May 2014

How to install a .tar.gz file in Linux

First of all, .tar.gz files cannot be "installed". These files are gzip-compressed tarballs equivalent to .zip files in Windows platform. .tar.gz files usually contains the source of a program and it needs to be extracted before you compile the program from the source. So, to 'install' a .tar.gz file in Linux, you need to extract it first on your hard-drive and then compile the program from the source. 

How to install a .tar.gz file in Linux

.tar.gz iconStep 1: The first step is to extract the gzip-compressed tarballs archive to a folder. You can extract an archive by right-clicking on it and choosing the appropriate option. Alternatively, you can extract an archive through terminal :

tar xzf file.tar.gz 

file is the package-name.
Step 2: Now, use the cd command to navigate to the destination folder where you have extracted the .tar.gz archive. 

The next step is to build the binaries:


To install it in the system, use the following command in the terminal:

sudo make install

To summarize up, the process of installing a .tar.gz file includes downloading the file, unpacking it to the preferred choice and then compiling the program from the source.

Note 1: Usually, the installation instructions are provided in the .tar.gz archive in a text file named either 'README' or "INSTALL'. It will include all the installation procedure. 

Note 2: Before downloading and compiling a source, why not to search it in the software center. Searching an application in the software center ensures that you download the latest and stable release of that software and you do not have to go through this compilation processes. 

Tuesday, 20 May 2014

How to Run Windows Application on Linux

wine emulatorLinux has evolved and so is its software base. However, sometimes you wish you could use the Windows application on Linux that has still not been ported to Linux platforms. There are some applications exclusive to Windows like its Office suite which will never be ported to Linux. There are tens of thousands of applications and Games that are more of made-for-Windows. For example, Adobe Photoshop is still not available to Linux users and you can't play Counter Strike on your Linux system.

Is their any way to run Windows Application on Linux that are not available. Yes, there is a solution. You can use WINE to run windows applications on Linux.

WINE is an acronym for "Wine Is Not an Emulator" and is a compatibility layer capable of running Windows application on Linux systems.Wine enables Linux, Mac, FreeBSD and Solaris systems to run Windows application without owning a copy of Windows. WINE is an open source and free software. Approximately, half of Wine's source code is written by volunteers with help from some commercial sections like CodeWeavers.

Why not to use VMWare to install Windows within Linux?

Well, you can always install any Virtualization software to install Windows Operating System and install and use applications that are not available in Linux. However, there are some restrictions. Using Virtual Environment will eat up your resources to a great extent. Plus you still need to buy a genuine copy of Windows OS in order to use it. 

Download Wine for your system. 

You can download Wine from the Alternatively, you can search in the Ubuntu software center and search fro WINE to install it. At present the stable version is wine 1.6.2 and the beta version available is wine 1.7.19

wine emulator

Windows Application that you can run on Linux.

There are 21297 windows applications that can be run on Linux and the list is growing. There are 3 categories under which the software are grouped - Platinum, Gold and Silver. 

Applications which install and run without any problems and flawlessly on an Wine installations are grouped under Platinum. Gold list apps are those which run flawlessly with some special configurations. Silver list includes applications that can be run with minor issues that do not affect typical usage.

Some of the popular applications are: 
  • Command and Conquer 3
  • The Sims 3 all
  • Left 4 Dead
  • Adobe Photoshop CS2 and CS3
  • Microsoft Outlook 2010 (32-bit) etc.
You can see the complete Windows Application list that can be run on Linux with the help of wine are listed on Wine App Database. 
These applications are categorized in the Platinum, Gold and Silver.

Which software applications you are running through wine and how's it working? Do share with our readers. 

Friday, 16 May 2014

7 Commands for Getting System Information in Linux

There are commands that you can use in Terminal to get your system information like disk space usage, free and used memory, information about running processes and system resources, machine and kernel information etc.

Getting system information in Linux - Terminal commands

> Open Terminal. 

df   The df command displays filesystem disk usage for all mounted portions. However, it will provide the system disk usage information in a blocks. You can use df -h to generate report in megabytes and gigabytes instead of blocks, h stands for "human readable".

 Getting System Information in Linux

du   du commands displays the disk usage for a directory. Variants are du -s, du -h, du -sh. s stands for "Summary" and h means "Human Readable".

 Getting System Information in Linux

free   It displays the amount of free and used memory in the system. free -m will give the information in megabytes.

 Getting System Information in Linux

top   top is table of processes. It displays information on your Linux system, running processes and system resources that includes CPU, RAM and swap usage. It all displays the number of tasks being run.

 Getting System Information in Linux
You may have to press "q" to exit.

uname -a   The uname command with -a option prints all system information, including machine name, kernel name and version, and a few other details.

 Getting System Information in Linux

lsb_release -a    The lsb_release command with the -a option prints version information for the Linux release you're running.

 Getting System Information in Linux

ip addr   It prints the ip address of your machine. 

 Getting System Information in Linux

These 7 commands will help you in getting basic system information in Linux. Do I miss something? Please add it in the comment section and I will update the post.

Note: I am using Linux Mint 16 Petra in Oracle VM Virtual Box 4.3.2 r90405.

Tuesday, 13 May 2014

Keyboard shortcuts within Terminal

terminal icon
Linux has evolved from the traditional command line interface to graphical user interfaces. There are various Linux desktop environments which support high resolution graphical way of handling everything with some clicks. However, there is a group of Linux users who still prefer the command line way of doing almost everything, the reason behind is that is faster and more powerful. Command line has been and will always be an integral and important part of any Linux distribution. In this article, I am sharing the keyboard shortcuts that you can use within the command-line terminal.

Starting a terminal.

You can start a terminal by searching it in the "Dash" in Unity desktop environment. In Gnome, navigate to Application Menu > Accessories > Terminal.

You can alternatively use Ctrl + Alt + T to open the terminal in almost every Linux distribution with any desktop environment.
Terminal WIndows

Keyboard shortcuts within Terminal.

The list do not cover the terminal commands but the keyboard shortcuts within a Terminal that can be used to handle the commands in an efficient way.

Enter   Run a command

Up Arrow   Show the previous command.

!$   Repeats the last argument of the previous command.

Ctrl-a   Move the cursor to the start of the line.

Ctrl-e   Move the cursor to the end of the line.

Alt-x   Move the cursor to the next occurrence of x.

Alt-Ctrl-x   Moves the cursor to the previous occurrence of x.

Ctrl-u   Delete everything from the beginning of the line to the cursor position.

Ctrl-k   Delete everything from the cursor position to the end of the line.

Ctrl-w   Delete from the cursor to the start of the word.

Ctrl-y   Paste texts from the clipboards.

Ctrl-t   Swap the two characters before the cursor.

Ctrl-l   Clear the screen with the current line at the top of the screen.

Ctrl-x Ctrl-u   Undo the last changes.

Ctrl-Alt-r   Undo all changes to the line.

Ctrl-Alt-e   Expand command line.

Ctrl-r   Allows you to type a part of the command you're looking for and finds it.

Alt-p   Non-incremental reverse search of the history.

!!   Execute last command in the history.

!abc   Execute last command in history beginning with abc.

!n   Execute nth command in history.

^abc^xyz   Replace first occurrence of abc with xyz in last command and execute it.  

Ctrl-d   Log out of current session, similar to exit

This is a list of the keyboard shortcuts you can use within a terminal to handle things in a better way. Try these gradually and you will save lot of time and effort.

Do I miss something? Please comment if you know some more keyboard shortcuts withing terminal which is not in the above list.

Update: +Jörg Linuxfreund pointed out that the Ctrl + Alt + T doesn't work in all Linux distributions/ desktop environments.

Opening a terminal in KDE. KDE comes with a console application Konsole. You will find it in Programs > System. You can try Alt + F2 which opens a small windows where you can type the application name konsole. In case Konsole is not there, you may try "xterm" that will do the same work for you.

Other Popular terminals for KDE are tilda and yakuake. You can download the stable release of yakuake here.

Friday, 9 May 2014

Is Firefox OS the next big thing?

Firefox OSSo here it comes, the free and open source operating system for mobile devices from Mozilla - Firefox OS. Built entirely on HTML5 and other web standards, Firefox ensures freedom from the restrictions of existing proprietary platforms. Firefox OS is a Linux-kernel based open source operating system for mobile devices using open standards such as HTML5, JavaScript and open web APIs. 

Firefox OS is brought to you by Mozilla, a global nonprofit organization that emphasizes principle over profit. Firefox believes in a Web that should be cared for, not a commodity to be sold. Firefox OS is created by Mozilla which created one of the best and most widely used Web Browser Firefox and most likely, you are reading this article through it.

Firefox OS is still in the initial stage and is available on ZTE Open, LG Fireweb or an Alcatel One Touch device. Currently Firefox OS is available in 14 countries across the globe:

Adaptive App Search. Firefox provides an adaptive search feature which enables the user to get information on any subject right when the user needs it.

Firefox Marketplace. Marketplace is a source for the best apps for Firefox OS. The app center is growing and enthusiast all over the world - the same people who contributed in the development of Open Source software and distributions are constantly working to improve it.

Open Source browser. Firefox OS contains the free and open source web browser Mozilla Firefox - the fast, smart, safe way to connect to the web.

Integration with the social media. Any updates from Twitter and Facebook will be right there in your notification, anywhere.

Other features. Firefox OS provides built in style features for fun, creative shots. You can enjoy the FM Radio and it is loaded with navigation tool, includes directions, traffic and local transit information.

Is Firefox OS the next big thing. 

Will Firefox OS be able to resist the dominance of Android and iOS? Time will tell. Firefox OS is still in the initial stage and has lot to cope up. Android has a large following and with Nokia acquisition by Microsoft, Windows 7 is getting its market share too. Its upon the enthusiast and the manufacturers to adopt it and bring open-ness in the Mobile OS.

I am personally looking for an Firefox OS device in India. The day it will be released, I will have. Will you?