Create Your #Ubuntu App!

A tutorial for how to create you first Ubuntu application. The tutorial shows how to create a simple web browser by generating a project, setting up your user interface, writing the code, and creating an Ubuntu package. If you are a beginner, this is the tutorial for you!

Ask questions at http://askubuntu.com/questions/ask?tags=application-development 
Video from (by Jono Bacon):
http://youtu.be/sO8hiPreNBg

 ---

Irritating bottom toolbar on virtual box-Ubuntu

Irritated by the small toolbox that pops up on the seamless mode?

Me too!

some suggested adding a new toolbar so that it will be like double decker.

some suggested removing it. http://superuser.com/questions/154182/remove-virtualboxs-lower-machine-configuration-bar-in-a-running-vm

I do not recommend it as it is sometimes handy.

So, my fixed-it solution for now would be to set the size so that it is just big enough to dwarf the irritating  config bar.

Another solution is to hang the toolbar upside instead of keeping it down there on bottom.

Less annoyance is always good! 

How to share Folder in Virtual Box

First become the super user

$sudo passwd root

On the Virtual Box: go to devices > shared folders and add a folder.

{I shared a folder named SharedVB (folder on windows) on D drive and gave it a name: SharedVB}

Then go to shell (again in the Virtual box) and do

$ sudo mkdir /mnt/Dshare

$ sudo mount.vboxsf SharedVB /mnt/Dshare
 The shared folder is up and ready.

The benefit is that one can copy from windows and access it from Virtual box.

How did I remove Ubuntu from my system

I never wanted to remove ubuntu. However, because of the space problem, I had to remove it. At first it did not seem to be quite easy job. Below I describe what I did:

• Formatted the partition with Ubuntu with NTFS: This removed the Ubuntu. Ofcourse, the key word is back up!
• Fixed the MBR: Bootrec.exe/FixMbr 
  Wanted to retrive the vista as the boot loader was then gone along with ubuntu.
  I inserted the recovery DVD that came with the computer, restarted in
  command mode for recovery and did
  Bootrec.exe/FixMbr
• So far so good... Ubuntu removed. However, after fixing the MBR, the "empty" drive did not show up.
• Installed Easeus Partition Master Home Edition 5.8.1  from download.com this allowed me to rewrite the partition name as D: instead of * NTFS. 
• Restarted. All was well after that.

Pannel button: Run Compiz and Kill Compiz in Ubuntu

Creating a panel button for running compiz and killing compiz is handy.

• Right click on the panel
• select "add to panel ... "
• select the custom application launcher
• If you want to have nice wobbly effects on your Ubuntu (provided it is available), type: compiz --replace in the command section
• If you want to replace the effects, because some of your applications have conflicts, type: metacity --replace &

You can switch Compiz on and off by having such panel button.

Updated Ubuntu 9.10 loads slower...

and I am saying...
yea, update it, make it slower.


When I upgraded to 9.10 from older version, I felt that I was the happiest person in the world. Now with updates, I feel like yikes! What went wrong???
So, I am keeping it updated so that it will be fixed eventually.

http://www.ubuntu.com/products/whatisubuntu/910features

Still better than the other one.

Launcher in Panel

The following was found in the terminal launcher for Opera:

[Desktop Entry]
Encoding=UTF-8
Version=1.0
Type=Application
Terminal=false
Icon[en_US]=opera
Exec=/home/myusername/lib/opera/9.64/opera
Name[en_US]=opera
Name=opera
Icon=opera

I am particulary interested in 

"
Terminal=false
"

It should be some where around the workout for ubuntu:

http://webloggerdai.blogspot.com/2009/04/point-matlab-application-to.html

Portable Ubuntu: Run Ubuntu Inside Windows

I found an interesting article about running Ubuntu inside Windows.

head on to lifehacker ...



My Recommendation would be to have a separate partition for Ubuntu and run it!

How to use terminal in Ubuntu

My first impression of Linuz was CLI command line interface.
As the GUI fashion grows up, in which windows users like me are more comfortable with, the importance of CLI can never be underestimated.

I found the article maintained in the Ubuntu forum on how to use the terminal in Ubuntu:
https://help.ubuntu.com/community/UsingTheTerminal

The ability to sudo is really nice...
What do you think?

Installing Antivirus in Ubuntu

I am finally convinced that having antivirus software in Ubuntu is not a bad idea.
Because "Theoretically" linux based virus are not impossible.
Now it turns my reason to run into linux: Speed!
It still loads faster than my vista on the other ntfs partition.
I have installed AVG for linux: free!
remember debian!

Another problem was updating it. I could not update it because whenever I was running it from the menu, it was simply not in "su mode"
So, I did the following:

• Go to  "System-->Preferences-->Main Menu" which will launch the menu editor.
• In the AVG entry in Accessories. Right click its entry and select Properties.
• In the "Command" box add gksudo to the beginning (so that it looks like "gksudo avggui")
• close the option and close the menu.
• It will prompt for password whenever you run it.
  
• since I already did gksudo, I am in "su mode".
• So, I can update it!
  

Thanks to :
http://ubuntuforums.org/archive/index.php/t-781201.html


Useful links:
http://ubuntuforums.org/showthread.php?t=136064

How to restart the network connection in ubuntu

Thanks to Amit:
/etc/init.d/networking restart

How to install Preeti font in Ubuntu Linux

How to install Preeti font in Ubuntu Linux

I will tell you what I did:
I did read ...
http://wiki.services.openoffice.org/wiki/Font-FAQ#How_do_I_add_fonts_system_wide
https://wiki.ubuntu.com/Fonts#Installing%20new%20fonts
and a lot of other junk links when I googled for it.

Here is "to the point" description:

1. become a super user.  >su
   
2. Got preeti font from http://ncthakur.itgo.com/preeti.zip you can find preeti.ttf from anywhere else.
3. keep preeti font in the desktop
4. 
   

   go to /etc/fonts/ 
   

5. copy the contents of the
   
   

    fonts.conf (Do not modify that file)
   

6. save the content as
   
   

   local.conf in Desktop 

7. because local.conf was not available in my case, (even if it is available ) just add line
   
   

   <dir>/usr/local/share/myfonts</dir> in appropriate place near top there are <dir> tags you can see.

8. copy the file to the location
   
   

   /etc/fonts/ 
   >> cp local.conf /etc/fonts

9.  create a folder in /usr/local/share as myfonts
10. copy preeeti to the folder >>cp preeti.TTF /usr/local/share/myfonts
11. do this >>fc-cache /usr/local/share/myfonts/
12. Good to go!

Deleted the bottom Panel in Ubuntu ...

I, accidently, deleted the bottom panel and apparently was in panic!

So was everyone else!
I found that deleting panel was a usual case. Inserting new panel did not solve my problem.



I found the following codes:

gconftool-2 --shutdown
rm -rf ~/.gconf/apps/panel
pkill gnome-panel

This solved my problem of restoring the default panel, but I lost all my shortcuts that I had placed on them.

I had to add to the panel, manually. Which is pain. But not more than losing them all!

How to change the mouse size in UBUNTU 8.04- the Hardy Heron

I was playing and accidently, made the mouse pointer very huge.
I thought, I can revert it easily.
Having a huge mouse pointer was nice. BUT, After a while, it became pain in the neck.

I wanted to get rid of the big mouse.

Naturally, I went into the natural place:
System>Preference>mouse.
There was no choice for changing the mouse size. And, by that time I had forgotten on where I did the changes.
Finally, I could figure it out.
The way is:
System>Preference>Appearance>Customize under the Theme tab> and then pointer tab and finally the default choice or other choice will be available.

Whew!

Edit:

 

How to change the password in ubuntu

How to change the password in ubuntu?

Changing the password in UBUNTU was like a challenge for me. because I had been doing it the manually. I used to go to
SYSTEM > ADMINISTRATION>USERS AND GROUPS
and then change the password for the user.
But when I reboot, the changes would not work!

Today, I was able to do it by going to terminal. This makes me feel little more comfy because, now I do have same password for WINDOWS and UBUNTU as well.
:)

1. to change the root password
sudo passwd
enter password

2. to change the user password
su
passwd user

done!