Tag Archives:shell

Shell Scripting Part 2: Accepting Inputs and Performing Shell ArithmeticHi! This article is the second part of the Howtoforge shell scripting tutorial series. By this time, I assume that you have read the first part of the series and know how to create a simple script and execute it. In the second part, you will learn how accept inputs from the user and process them through shell scripting. Let’s get started!Variables in LinuxJust like programming languages, Linux shell has the capability of storing data in variables. A variable is a container that temporarily stores data that will be processe

Shell Scripting Part I: Getting started with bash scriptingHello. This is the first part of a series of Linux tutorials. In writing this tutorial, I assume that you are an absolute beginner in creating Linux scripts and are very much willing to learn. During the series the level will increase, so I am sure there will be something new even for more advanced users. So let’s begin.IntroductionMost of our operating systems including Linux can support different user interfaces (UI). The Graphical User Interface (GUI) is a user-friendly desktop interface that enables users to click icons to run an a

Shell Scripting Part 3: Decision Control Structures in Shell ScriptsHi! We already covered the basics of shell scripting such as accepting inputs, process data through arithmetic operations and generating and displaying output in the previous parts of this tutorial (part 1 and part 2). In this part, we will go deeper to a more advanced topic in a programming language — making decisions in a program, but this time we will do it using bash shell. Let’s get started!IntroductionMost of our programming languages today are able to make decisions based on conditions we set. A condition is an express

Shell Scripting Part 4: Repetition Control StructuresWelcome to part four of HowtoForge’s shell scripting tutorial series (Click here to read the part 1, part 2 and part 3 of the tutorial). In this part, we will cover the different repetition control structures of the bash shell and how to use each structure by providing some examples. Let’s get started.IntroductionRepetition control structure, also known as looping control structure, is a type of control structure in programming languages that is used to simplify repetitive or recursive tasks. The looping statements optimize any code by provi