Saturday, 11 June 2011

How to completely remove an application and its settings in ubuntu

We can remove applications in ubuntu using apt-get remove command. But it will not completely remove an application. The installed files dependencies and the configurations will remain in the system. This will in future cause to the not needed dependencies and junk files which we are never going to use remain in the system and will eat up the hard disk space. So how to remove an application completely in ubuntu?

Wednesday, 8 June 2011

Creating app images in linux

I have blogged about the app images in this blog. They are very useful, especially if you do not have the root privilege or you do not want to mess up with your current settings.

So what if you want to create an app image for your favorite app that is not available in the portable linux apps site? There is a good how to created by the blogger tekkidd. He has also created a video tutorial for creating the app images.

Monday, 16 May 2011

The best way to use gnome 3 shell

Ubuntu comes with its own shell callled unity and the rest of the distros comes with gnome 3 shell. You can read about my thoughts about unity and gnome 3 shell here. If you want to test gnome shell, you can try the live cd of opensuse and fedora 15 which uses gnome shell by default. But what if you want to test it on your favorite distro called ubuntu..? Why I prefer ubuntu to try gnome shell? I have used fedora live image but I was not able to connect to internet using my mobile. In ubuntu world , everything just works.

Tuesday, 10 May 2011

Quick tip: How to encrypt files in linux

We can easily encrypt files ( whether it is text file,audio or video file) in linux using the command line program called gpg.

To encrypt file:

To encrypt files using gpg, open the terminal and type the following syntax:
  • gpg -c /path to file/filename
gpg is the program we are using to encrypt the file. -c switch is used to create the encrypted file. '/path to file' is the path where the file is located and '/filename' is the name of the file to be encrypted.

Tuesday, 3 May 2011

My thoughts about Unity and Gnome3 shell

Recently ubuntu has switched to a new shell called unity which is built on the top of gnome 2.x series while the traditional gnome has migrated to the new incarnation of gnome called gnome 3 and it sports a different shell from the traditional gnome 2 series and unity.

Actually there is not much difference between the user interface of gnome3 shell and unity. But unity uses compiz as window manager while gnome3 relies on mutter. Ubuntu wanted to use compiz but gnome developers preffered mutter. That is the reason why ubuntu developers has created unity based on compiz.

Tuesday, 26 April 2011

Let's free the gnome fish

There is a fun easter egg in gnome. Gnome panel has a utility called 'fish'. You can let this fish swim in your desktop and give company to you in your loneliness. It is a cute fish and its name is 'wanda'. So let's free the wanda fish in gnome.

Press Alt+F2 key combination and it will open "run application" utility. Then type "free the fish" (without quotes) and press Enter key.

Monday, 25 April 2011

How to install adobe flash player 64 bit in rekonq - kubuntu's new default browser

Today I was testing the kubuntu 11.04 beta 2 from usb. I am using kde after 2 years. I always wanted to test the latest changes brought by kde 4.6 and now only I actually ventured into it. This was really a refreshing experience for me and I liked the recent changes in kde. The thing which most interested me in kubuntu is its new default browser rekonq.

Rekonq is the default browser is kde for the good. I used konqueror before but can't stick with it. Even though konqueror is different it had many quirks and irks which made me switch to firefox. But the new default browser rekonq has rectified all the drawbacks of konqueror. I am not going to write a review about rekonq here but I am going to talk how to install adobe flash player 64 bit in rekonq.

Wednesday, 20 April 2011

Plop boot manager - or what I have learned from internet

Today I have learned a great lesson from internet. I am using a 4 year old computer. I have recently came to know that it does not support booting from usb. I wanted to test so many linux distros. I have used Virtual Box before. But I was not not satisfied in trying the various distros in a VM. The interesting changes happening in the linux world urged me to test them in real environment rather than a VM.

Ubuntu 11.04 is switching to unity and gnome is shifting to gnome shell. I wanted to  try these myself. But there is a problem. The Ubuntu unity and gnome shell does not work on a VM. It will switch to classsic gnome in unity and gnome without the new gnome shell in  gnome 3 in a VM. And much more, these are extremely slow in a VM. This was really irritating to me and I wanted to test them using a bootable usb image. But my pc does not support booting from usb.

Sunday, 17 April 2011

Minitube - a flash free desktop youtube app for your beloved linux

The severe problem that linux suffer on a desktop is the bad performance of flash. Adobe is not much interested in improving the flash performance in linux as they are concentrating on improving their market share on mobiles. And our major source of online videos is youtube. So would it be great if we have a native desktop app for linux to view the youtube videos without flash? Yes, the developer of Minitube, Flavio Tordini also thought like that. And he has created Minitube.

Wednesday, 13 April 2011

Postr - a flickr uploading tool for your gnome desktop

Postr is a simple flickr photo uploader tool for the gnome desktop. If you are a flickr addict this is going to a very useful tool for you. It is specially designed for the gnome desktop. It was originally developed by Ross Burton and now maintained by Germán Póo-Caamaño who is also using this project for mentoring and encouraging new contributors for GNOME.

Let's have a look at the features of postr now:

Tuesday, 12 April 2011

Htop a better command line system monitor utility for your linux

Most of the people will be familiar with the top command that is used to check the processes running in our linux distro and it also gives vital information like memory usage, cpu usage etc. But most of the cases it seems that the top command itself is not enough and I often feel that the top utility is not that much accurate. This started me looking for a better command line alternative for top. Thus I stumbled upon an awesome command line system monitor utility called "htop".

Htop is, according to its website is "an interactive process viewer for linux". It is written in C programming language and it uses ncurses library. It is created to overcome the usability issues and limitations of the top utility in linux. It is created by Hisham H. Muhammad and he has named it after him. That is htop is the short name for Hisham's top.

Friday, 8 April 2011

How to view UTC/GMT time in your terminal?

In this post we will see how to view the UTC/GMT (Coordinated Universal Time/Greenwich Mean TIme) in our terminal. We will be living in different time zones and we are using Greenwich Mean Time as the standard time to calculate time in other time zones. For example, I'm in Indian Standard Time and it is 5.30 hours ahead of GMT. So it is very common in internet to use UTC/GMT as a standard to tell about the time as people are in different time zones. So what if you do not know the time difference between your time zone and UTC/GMT?

We can find the UTC/GMT time from the terminal itself. For finding the UTC/GMT time type the following command in the terminal.

Thursday, 7 April 2011

How to find the free space available in your hard disk using command line?

We can easily find the free space in our hard disk using command line. Command line, once we master it, is a lot easier than using Graphical User Interface(GUI), especially in linux. In linux, we have different Desktop Environment(DE) like Gnome,KDE,XFCE,Enlightenment etc which may be using different GUI based programs to find this simple free disk space. It may even change from distro to distro. So if we came from an entirely different linux distro or DE we will have to search for the specific program to view the free disk space. So what is the simplest and universal solution? Yes, it is command line which available in all the linux distros and have the same command to perform a specific task. So let's find out how find the free space using command line.

 Type the following command in your terminal to view the free space.

  • df -h

Wednesday, 6 April 2011

How to hide a command from commandline history in linux?

Naturally if we want to use the commands you have entered on the terminal, you can choose them by using up arrow and it will cycle through the previously used commands. Otherwise you can use the "history" command to see the full commands entered in terminal. But what if you want to hide certain commands from showing up in command line history? To find out read on!

It is very easy to hide certain commands from history. Using this method, we will be using a 'space' before the actual command to hide that command. So whenever a command starts with a space, it will be ignored to store in the command line history. Type the following command in terminal to make terminal not to remember a command starts with space.

Sunday, 3 April 2011

The best bit torrent client or a utorrent alternative for linux - The qBittorrent review

I have used a tried a lot of bit torrent clients in linux in my quest to find the best bit torrent client.Actually I have migrated from Windows so I was in search for the utorrent alternative. At that time utorrent was only available for windows.

I have switched to Ubuntu and the default bit torrent client is Transmission. As I have used utorrent, I was really confused about how to use Transmission. In short, I was never happy with Ubuntu's default bit torrent client. In my search for utorrent alternative, I have met Deluge, which fairly satisfied me, Ktorrent which confused me with its hell lot of configuration settings,Vuze which I felt that it is an operating system of its own rather than bit torrent client.

Saturday, 2 April 2011

How to view system information in Ubuntu/Linux Mint - the GUI way.

I have written a post about viewing the system information in linux using the command line way. It will work on all linux distributions and more over you do not need to install any other softwares. But if you are using Ubuntu/Linux Mint and want to view the system information in a more comfortable graphical interface (GUI) way? Let's find out how to achieve this.

Friday, 1 April 2011

How to use your Linux Terminal as a stop watch timer?

Some times we may need to use a stop watch timer in order to calculate the time taken by something against some other thing to compare between two things. For example, if you need to check the speed of loading pages between Firefox 4 and Google chrome in linux.

As you are using linux, there is always a simple and better way to do this. For doing this you do not have to install a separate software. You can use your terminal as a stop watch timer. Yes, you have heard it right. I repeat " You can use your terminal as a stop watch timer". Let's have a look at how to use the terminal as stop watch timer.

Friday, 25 March 2011

What is App image and how to use it?

App images are new way to install our favorite linux softwares, the easy way. They are just like a .deb package which we need to double click to install it. But an App image, there is no need to actually install software. The App image contains all the needed file to run the software. So if we double click the App images, it will run the software without even installing it.

In order to make it work, we need to download and App image (obviously) and then right click it -->> open properties -->> permissions.Then check "Allow executing file as a program". Then we just need to double click the downloaded App image to run it. For example, you can download the App image of Midori and change permission of it to "Allow executing the file as a program" and double click it to run Midori . (photos are given at the end of the post). How easy.... isn't it?

Thursday, 24 March 2011

How to find out which Linux distribution you are using?

Some times you may want to know which linux distribution you are using. You may tell that while starting the Linux desktop we can see which linux distribution you are using as each linux distro has different boot splash screen and they will show the name while booting. But if you want to know which version of Ubuntu you are using like version 9.04 or 10.10 etc or if you want to know the code name given by Canonical for the Ubuntu which you are using?( Ubuntu uses code name for different versions of it. For example, Ubuntu 10.10 known as Maverick Meercat and next version 11.04 known as Natty Narwahl).In Ubuntu and other gnome based distros we can use "System Monitor" or softwares like  Ubuntu Tweak not only provides an easy way to view sytem information but a single stop destination for managing your system. But the "System Monitor" utility is only available for Gnome and if you are using KDE or any other desktop environment?There will be some apps but it will be different from one another. So what is the universal solution which will work with all the linux distros?

Wednesday, 23 March 2011

Firefox 4 has been added to the Mozilla Firefox stable PPA.

Mozilla has released the Firefox 4 in their PPA. In order to add the Firefox PPA and download it type the following commands in a terminal.

Tuesday, 22 March 2011

Firefox 4 has been officially released.

Even though Firefox 4 is available to download  from yesterday, today Mozilla has officially released it. You can download it from here.