Conditional Structures in Shell Scripting - III

After if..else  and if..elfi..else we move to looping structures. Looping is supported in the form of for and while. Again they work semantically the same but syntactically different.

Conditional Structures in Shell Scripting - II

Nested if..else
Nested if else statements can be useful to check multiple conditions. For example, given a number first check whether it is positive or negative then  test the range in the respective domains.

Conditional Structures in Shell Scripting - I

The conditional structures like if, elseif, while and for in shell are exactly the same in semantics as the those found in the high level programming languages like Java, C, C++. The difference lies in the syntax.

Pipes and Shell Arithmetic

Pipes
Pipe is powerful utility in Linux which allows the user to execute a chain of commands together. Chaining is done in such a way that the output of one process (stdout) is the input to another (stdin).The symbol | is the Unix pipe symbol that is used on the command line. 

Running Ubuntu in Virtualbox on Windows

The people who don't want to mess with their boot configuration or go through the pain of installing linux or just want to stick with windows but want to work with linux - this tutorial might be helpful. This tutorial gives a step by step guide on how to run ubuntu or fedora on Virtualbox on your windows machine.

Redirection of standard input/output in Linux

When we type a command on the terminal we get an output corresponding to that command. But suppose we want to store the output to a file or redirect the output directly onto the printer then what should we do?

The answer is simple redirection operators.