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The function is one of the most powerful feature of the shell script. Function is the line of codes between two parenthesis which is executed when it is called. The functions in shell script can or cannot contains the arguments. For example: we can create a function with the function name ‘addition’ which will add [...]
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 [...]
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 [...]
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 [...]
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 [...]
This tutorial is continue to the how to write, save and execute the shell script. If you are already a programmer, then you are already familiar with the word variable. Variable is something that stores the value temporarily. We can store anything in the variable and later call that variable. Also, we can ask to [...]
You have just entered or executed more than one command at a time using two ways in how to run multiple commands at same time. There are two ways to do it. In the second way, instead of writing the command in terminal directly we wrote the command in a file, save it and later [...]
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