Archives For time:

This simple tutorial shows you how to add ‘File Compare’ option on Nautilus’ context menu in Ubuntu 13.04 Raring Ringtail.

file compare in nautilus

There are a few tools in Ubuntu allow to compare files or folders, such as Meld Diff Viewer, Kdiff3. Nautilus-compare is a simple plugin that integrates them with Nautilus file browser.

Press Ctrl+Alt+T on your keyboard to open temrinal. When it opens, run below command to install this plugin:

sudo apt-get install nautilus-compare

Once installed, open “Nautilus Compare Extension Preferences” from Unity Dash and choose your diff veiwer:

nautilus file compare extension

Finally, restart Nautilus by below command to apply changes:

nautilus -q

For Ubuntu 13.04, due to bugs you need to run below command to get it work:

for 32-bit:

sudo ln -s /usr/lib/i386-linux-gnu/ /usr/lib/

for 64-bit:

sudo ln -s /usr/lib/x86_64-linux-gnu/ /usr/lib/

Install Shutter 0.90 in Ubuntu 13.04 via PPA

Last updated: March 11, 2015

This simple tutorial shows you how to install the latest Shutter 0.90 on Ubuntu 13.04 Raring Ringtail using its PPA repository.

shutter 0.90

This release fixes bugs and removes some error prone (or unused) features. Some of the error prone features has been removed in order to keep Shutter’s codebase easier to maintain.

Due to licensing issues it was necessary to remove three plugins (3Dreflection, 3Drotate, bordereffects). The plugins are based on scripts written by Fred Weinhaus and he asked to remove them from Shutter.

Shutter 0.90 indicator adds a new option to show the main window, it’s convenient for Unity users.

shutter show main window

This release removes the following dependency: libgnome2-gconf-perl (Gnome2::GConf)

Install Shutter from PPA:

The Shutter PPA is ready for Ubuntu 13.04, 12.10, 12.04 and 10.04 users. Press Ctrl+Alt+T on your keyboard to open terminal. When it opens, run below command to add the ppa:

sudo add-apt-repository ppa:shutter/ppa

Then you can install it via below command:

sudo apt-get update; sudo apt-get install shutter

This simple tutorial shows how to reduce / increase the number of workspaces on Ubuntu 12.04, 12.10, 13.04 and upcoming 13.10 Unity Desktop.

6 number of workspaces

There are quite a few Ubuntu configuration tools that allow to manage number of workspaces on Unity Desktop, such as Ubuntu Tweak, Unity Tweak Tool, Unsettings, CompizConfig Settings Manager, etc.

NOTE: For Ubuntu 13.04 and higher, you may first enable workspaces from System Settings -> Appearances -> Behavior tab -> Enable Workspaces.

To change number of workspaces via Ubuntu Tweak:

Ubuntu Tweak is very popular Ubuntu Configuration tool which was started in 2008. The first supported release is Ubuntu 7.10 Gutsy Gibbon.

To install Ubuntu Tweak, first download the .deb file from Or use below command to download it (Press Ctrl+Alt+T to open terminal for running commands):

cd ~/Downloads/ && wget

To install Ubuntu Tweak, run:

sudo dpkg -i ~/Downloads/ubuntu-tweak_*.deb; sudo apt-get -f install

Once installed, open the tool and navigate to Tweaks -> Workspace. Change the value of horizontal and vertical workspace and that’s it!

number of workspaces via ubuntu tweak

To change number of workspaces via Unity Tweak Tool:

Unity Tweak Tool is a settings manager for Unity Desktop. It has a user friendly GUI. If you’re running on Ubuntu 13.04 Raring and higher, this can be a good way to add or remove virtual workspaces. Because Unity Tweak Tool is available in Ubuntu Software Center by default. You can click the link below to launcher USC and install it.

Install Unity Tweak Tool

Once installed, open it. Under Window Manager click Workspace Settings. Then you’ll be able to change the number of workspaces:

number of workspaces tweak tool

Use CompizConfig Settings Manager to Change number of Workspaces:

Compiz is a compositing window manager for the X Window System. It’s the default in Ubuntu system. CompizConfig Settings Manager (CCSM) is the GUI tool for configuring Compiz effects.

To install CCSM, click link below to launch Ubuntu Software Center and click install button.

install CCSM

Once installed, open it from Unity Dash. Navigate to General -> General Options -> Desktop size tab, there you’ll see the options to change number of horizontal and vertical workspaces.

number of workspaces CCSM

This brief tutorial is going to show you how to download and install JDownloader 2 Beta on Ubuntu 12.04 Precise, 13.04 Raring.

Jdownloader 2 main window

As you may know, Jdownloader is a free and open-source download manager written in Java, which allows the automatic downloading of files and split files from one-click hosting sites such as RapidShare.

For the difference between classic Jdownloader and Jdownloader 2 Beta, see:

Install JDownloader 2:

Jdownloader depends on Java 6 or 7, so first install OpenJDK from Ubuntu Software Center or Oracle Java 7 from ppa. To check current installed version, run below command in terminal:

java -version

You should see similar output:

java version “1.7.0_25”
Java(TM) SE Runtime Environment (build 1.7.0_25-b15)
Java HotSpot(TM) Client VM (build 23.25-b01, mixed mode)

To get started installing Jdownloader 2 Beta, you may check your system type (32-bit or 64-bit). Go to Unity Dash, search for and open Details to check out your OS information:


Once you confirmed your OS type, press Ctrl+Alt+T to open terminal. When it opens, run command to download JDownloader 2 beta for Linux installer. (jdownloader download page)

  • For 32-bit os:
  • For 64-bit os:

In order to run this .sh installer, run below command to give it executable permission (Or you can do this in file Properties window.)

chmod +x JD2SilentSetup*.sh

After that, run the .sh installer via command below:


It brings up the setup wizard. Follow it and you’re done!

Jdownload 2 setup wizard

Once installed, Jdownloader 2 should available in the Unity Dash.

UPDATE: To uninstall Jdownloader 2, just run the “Uninstall JDownloader” file in the installation folder to bring up uninstall wizard and follow it.

As you may know, Jupiter is a powerful and lightweight power and hardware control applet. It has been retired and last supported release is up to Ubuntu 12.10 Quantal. However, Jupiter is available for Ubuntu 13.04 from JoliCloud Desktop Environment PPA.

Jupiter on Ubuntu 13.04

The webupd8team add the packages to the ppa and it’ll be used as a background program for JoliCloud session. I’ve installed it on my laptop and it’s working well.

Install Jupiter on Ubuntu 13.04:

Note that don’t install it on a product machine. Use it as your own risk!

Press Ctrl+Alt+T on your keyboard to open terminal. When it opens, run below command to add the PPA repository:

sudo add-apt-repository ppa:jolicloud-team/ppa

Then update package lists and install:

sudo apt-get update; sudo apt-get install jupiter

To install Jupiter support package for Eee PCs:

sudo apt-get install jupiter-support-eee

jupiter ubuntu 13.04 unity