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Dictionary/Objects in Bash

Dictionary is the collection of key and value pair which helps you to improve your productivity. You can create an dictionary/object like the following code, values can be either wrapped with singl...

Conditional Statements in Bash

The statement allows you to make decisions in your Bash scripts. It allows you to run a piece of code based upon conditions and make much more complex scripts, which may solve your larger tasks or ...

Brace Expansion in Bash

Brace expansion is used to generate a series of words or letters separated by , comma, or .. 2 periods. .. 2 periods will set a range from x to x position. , comma will generate a series of s...

Array/List in Bash

Array/List is the collection of values that helps you to improve your productivity. You can create an Array/List like the following code with single/double quotes separated by space, not comma. Ru...

Arithmetic Operators in Bash

Arithmetic operators are simple calculations, like addition, subtraction, multiplication, and etc. This is simple and straightforward topic, I believe no need to explain here. Because we all did ca...

OpenSSL command in Linux

OpenSSL is an open-source command line tool that is commonly used to generate Private Key, Certificate Signing Request (CSR), install SSL/TLS certificates, and identify certificate information too....

AWK command in linux

awk is a text processing command like search, replace, and manipulate text. It allows you to use variables, functions, and operators. Some Engineers said it is another programming language. Option...

Automation with Ansible

Ansible is Configuration Management (CM) tool, CM is a process for maintaining computer systems, servers, and softwares automatically. Prerequisites You may need to install sshpass and ansible on ...

Git and GitHub Guide

It is a Version Control System (VCS) where you can track all the changes. It enables multiple engineers to simultaneously work on a single project. Architecture Diagram Prerequisites Most of the ...

Sed command in Linux

sed is a powerful text editor, which stands for stream editor. It does insertion, deletion, search and replace, or substitution from your given paragraph. It is good for data manipulation and text ...