How to make your own calculator using shell script in Linux

Calculator Menu

Shell script is the powerhouse of Linux. We have done various things in shell scripting up to now. If you are reaching this tutorial directly and you don’t have a single clue about the shell script I recommend looking at our shell scripting section first. In this tutorial we are going to build a simple [...]

Shell Script: Case structure and Select Statement

case structure in shell script

The case structure like if statement is used in decision making in the shell script. We already find out how to make the decisions using if and else statement. Case structure provides a multiple branch decision mechanism. The case statement works both on bash shell and korn shell. You can install on Korn shell in [...]

Shell Script Looping: while, until, for

while loop in shell script

Loop or iteration is repeats certain instructions again and again until the given condition is true. The block of code under the loop is executed repeatedly until the condition is true. There are three kinds of loop: while, until and for. If you are unfamiliar with the shell scripts, first look our previous tutorial on [...]

Webilder: Download image from flickr webshot and use it as wallpaper

downloading photo

Webilder is the stunning application that will deliver wonderful wallpaper to your Linux from Flickr, webshots and your local folders. The image can be automatically obtain when user specify certain keyword tag like(cars, bike). Webilder automatically download the wallpaper based on the tag and display as wallpaper on your desktop. Furthermore the application automatically change [...]

Install Upgrade LibreOffice 3.4.5 in Ubuntu 11.10 via PPA

libreoffice 3.4.5

Libra office 3.4.5 ppa is now available for ubuntu user. The latest version comes with huge amount of bugs fixed. All the bugs fixes information can be access from here. Minimum 256 MB is required in new version and 512 is recommended for best performances.  The more information about the system requirement of the new LibreOffice [...]

How to upgrade to Linux Kernel 3.2 in Ubuntu 11.10

kernel update

Ubuntu 11.10 by default has Linux Kernel 3.0. The Linux Kernel version 3.2 was released  weeks ago and comes with lots of bugs fixes and huge improvements like Ext4 supports block sizes up to 1MB, which decreases the time spent doing block allocations, upper limits of CPU time can now be set in the process [...]

Decision making in shell script(if..else condition)

output of if statement

The if and else condition is used in decision making in shell script. If the given condition is true, the command is executed otherwise won’t. Condition is the comparison between the values. For example, you have seen in some websites, “Enter only if you are 18+”. If you click on Yes you can enter into [...]