Using Loops (while, for) in awk scripts
The awk programming language contains many of the programming concepts that are used in shell scripting. Conditionals, such as the…
4 years ago
Shell Scripting
Beginners Guide to Using “trap” to Catch Signals and Handle Errors in Shell Script
Shell Signal Values A signal is a message that some abnormal event has taken place or a message requesting another…
4 years ago
How to Make a Variable read-only (constant) in Bash and Korn Shell
Creating Bourne Shell Constants A variable can be made read-only with the following syntax: readonly var[=value] The square brackets around…
4 years ago
Examples of “shift” Command in Shell Scripts
The shift Statement Sometimes a script does not require a specific number of arguments from users. Users are allowed to…
4 years ago
Korn Shell select Loop
The select statement in the Korn shell creates a menu. This construct is for the Korn shell only. The syntax…
4 years ago
How to use “break” and “continue” statements in shell scripts
The break Statement The break statement allows you to exit the current loop. It is often used in an if…
4 years ago
How to use until loop in Shell Scripts
The until Loop The until loop is very similar to the while loop, except that the until loop executes as…
4 years ago
“while” Loop Examples in Shell Scripts
The while loop allows you to repeatedly execute a group of statements while a command executes successfully. The syntax for…
4 years ago
6 Bash Shell Command Line Chaining Operators in Linux
Introduction In this article, I will explain you 6 Bash shell command line Chaining Operators (Linux operator). Now let’s discuss…
6 years ago
What are Shell Scripts? How to Create Shell Scripts?
What Is a Shell? A shell is a program that provides an interface between a user and an operating system…
7 years ago