Ubuntu 14.04 Trusty Tahr, What's new in this LTS

Ubuntu 14.04 LTS Final now there and ready for download. You can download it from the server Indonesia, one of which is in mirror.unej.ac.id 

14.04 LTS, LTS means Long Term Support, meaning that the Ubuntu LTS given support or updates for five years. This means that Ubuntu will be updated until 14.04 the next five years. 

To understand more deeply, it is better to download and try to install on your computer. Here are a few of the many advantages compared to previous versions of Ubuntu 14.04.

It's no secret since the Ubuntu Unity interface wear, they got a lot of criticism and problems. Unity itself becomes an interface defaut Ubuntu since 2011, the previous default Ubuntu is a Gnome interface. Ubuntu Unity, now much more refined and has better performance and faster. Perhaps there are still some less than perfect, but not too flashy. At 14.04 LTS Ubuntu Unity, Compiz plugins already replaced the same decor GTK3 CSS themed window decoration. GTK3 resize has better speed and anti-alias feature in every corner of the corner of the window. Top panel also already be in the right click option that will give you the option for minimize, unmaximize, set the window always on top. As a whole may not be too different from the previous edition. For systems in which there is a slightly different way of setting APT sources.list, in this edition source.lst been grouped by mirrors to be addressed. As for the disadvantages, there are some applications that are not available in this edition. But as a whole the same flavor and a little different.

Read More

Shiny R with Ubuntu

The first hearing of an application is not shiny like it as a song lyric I have ever heard. Shiny introduced by a professor, he was a friend of mine who is an expert in the field of statistics in particular R.

Shiny makes it super simple for R users like you to turn analyses into interactive web applications that anyone can use. Let your users choose input parameters using friendly controls like sliders, drop-downs, and text fields.

Easily incorporate any number of outputs like plots, tables, and summaries. No HTML or JavaScript knowledge is necessary. If you have some experience with R, you’re just minutes away from combining the statistical power of R with the simplicity of a web page. Next is complete list of instructions for installing Shiny Server and its prerequisites on Ubuntu

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

# Install R
sudo add-apt-repository 'deb http://cran.rstudio.com/bin/linux/ubuntu raring/'
sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys E084DAB9
sudo apt-get update
sudo apt-get install r-base r-base-dev

The same as above, except when installing R this line:
sudo add-apt-repository 'deb http://cran.rstudio.com/bin/linux/ubuntu raring/'
must be replaced with this line for Ubuntu 12.10:
sudo add-apt-repository 'deb http://cran.rstudio.com/bin/linux/ubuntu quantal/'
or with this line for Ubuntu 12.04:
sudo add-apt-repository 'deb http://cran.rstudio.com/bin/linux/ubuntu precise/'

# Install Shiny in system-wide library
sudo su - -c "R -e \"install.packages('shiny', repos='http://cran.rstudio.com/')\""
sudo npm install -g shiny-server

# Install Upstart script
sudo wget\ https://raw.github.com/rstudio/shiny-server/master/config/upstart/shiny-server.conf\ -O /etc/init/shiny-server.conf

# Create a system account to run Shiny apps
sudo useradd -r shiny

# Create a root directory for your website
sudo mkdir -p /var/shiny-server/www

# Create a directory for application logs
sudo mkdir -p /var/shiny-server/log

# Start Shiny
sudo start shiny-server

# Optional: Install examples to test
sudo cp -R /usr/local/lib/R/site-library/shiny/examples /var/shiny-server/www/

Now open a browser to http://localhost:3838/examples/ and see if they work.

Read More

QMMP like WinAmp for Ubuntu 12.04 / 12.10 / 13.04

We all must have been a familiar winamp-based windows, applications mp3 player, mp4 and some videos but most of us use to play mp3. how in linux especially ubuntu, after several times trying different mp3 player application choice fell on QMMP. Similar to winamp and of course we have been accustomed to using.

Display the currently playing music, equalizer and playlist songs are easy and simple are the hallmarks of QMMP.

  
Very easy way to install it: 

sudo add-apt-repository ppa:forkotov02/ppa 

sudo apt-get update sudo apt-get install qmmp 

sudo apt-get install qmmp-plugin-pack 

For skins can be downloaded at this link.
Then place it in the folder : /home/username/.qmmp/skins

  Read More

Shift Key Problem

Some time ago I had trouble in my notebook. Some keys do not work properly. Incidentally when I menngunakan windows 7 operating system, I thought this was definitely a virus. That could happen because for this notebook does not have any anti virus installed.

I have some anti virus download, especially free. Then started the experiment, anti virus installed complete with latest updates. After that do a scan with a very saturate. The result is very disappointing, fixed knob is not working as usual.

There's crazy ideas, one of which troubled push button button simultaneously while annotate. And the result: Press right shift key and the left shift key simultaneously for a few seconds, then work

Hopefully this can help you to share your experiences problems.

Read More