An Exhaustive Guide to Bash History Expansion
History expansion is a way to recall, modify and execute commands in the history list. Bash shell can remember a …
Bash Scripting
A Total Guide on Global Variable in Bash [3 Examples]
In Bash, every variable is global by default which means you can access it throughout the entire script. These global …
Check If a String Contains Substring, Number & Letter in Bash
Bash refers to the Bourne-again-shell, a popular script used in Unix-like operating systems such as Ubuntu. In bash, a string …
What is “$?” in the Bash if Statement? [8 Examples]
The $? is a special variable that holds the exit status of the last executed command in Bash. After executing …
Usage of Logical “AND (&&)” Operator in Bash Scripting
In some cases, you may need to combine several expressions to create conditions for the if and else sections of …
How to Pipe Output to File in Linux [4 Ways]
Redirecting the output of a command to a file through a pipe is a fundamental concept in command-line environments, like …
How to Multiply Variable in Bash [6+ Practical Examples]
To multiply variable in Bash, you can follow these steps: Firstly, initialize two variables. After that, multiply the two variables …
How to Read From Pipe in Bash [5 Cases]
Reading input interactively from the commands pipe is a common task in Bash scripting. In the case of collecting user …
Bash Logical Operators
Bash logical operators are essential components of shell scripting that enable users to create conditional expressions and make decisions based …
If Else in Bash
Controlling the flow of statements execution in the bash program is a fundamental task of decision-making. Therefore, in the bash …
Insights to Local Variable in Bash [4 Practical Examples]
Local variables are crucial elements in Bash scripting. These specify the variables that are used to store and manipulate data …
How to Subtract Two Bash Variables? [4+ Easy Approaches]
Subtraction is one of the most common yet important mathematical operations on Bash variables. When Bash programmers work with data …
Variable Scopes in Bash
In Bash scripting, variable scope is a crucial context that determines the visibility of variables. It allows you to manage …
How Unbound Variable Error Occurs in Bash [Cases & Solutions]
There may be a situation when you want to use a variable, but it’s not declared, assigned or initialized. In …
A Complete Guide to Bash Array
In the world of programming, every language is equipped with a crucial tool named array. Data structure in origin; arrays …
What is Array Expansion in Bash [4 Useful Applications]
Bash shell offers multiple array handling tools and techniques. Among them array expansion is prominent. It takes the array handling …
4 Ways to Remove or Strip Quotes From String in Bash With Cases
In Bash scripting, text manipulation has become a common task to perform using different utilities and methods. Removing quotes is …
Addition of Bash Variables [4+ Examples]
Addition is one of the most basic arithmetic operations. In data processing, programmers need to add variables to make calculations …
Bash Operator
Imagine you’re responsible for managing a complex server infrastructure, you need to automate routine tasks, validate user inputs, and make …
Arithmetic Expansion in Bash [3 Practical Applications]
Have you ever performed any arithmetic calculations in Bash? If you’re new to Bash scripting, you might encounter difficulties when …
