DevOps

A collection of 160 posts

AWS S3

How to create an AWS S3 bucket using Terraform

The steps outlined in this blog post provide a guide through this basic process, while advanced configurations demonstrate its power for managing AWS S3 buckets.

Kubernetes

How to Manage Your K8s with K9s Kubernetes CLI

K9s is a terminal-based UI to interact with your Kubernetes clusters. Learn how to use K9s CLI to monitor and manage your Kubernetes resources.

book review

The DevOps Handbook - A Comprehensive Book Review

"The DevOps Handbook" is rightly celebrated as a monumental guide that stands as a pillar of knowledge and inspiration for individuals and organizations navigating the transformative pathways of DevOps.

book review

Effective DevOps - A Comprehensive Book Review

"Effective DevOps" is a comprehensive guide that offers valuable insights and practical strategies for fostering a collaborative and effective DevOps culture.

cncf

CNCF Tool Interviews Series: OpenTofu

Interviewing the CNCF tool as if it were a real person

Bash Scripting

Bash Regex: How to Use Regex in a Shell Script

In this blog post, we understand what regex is, along with some common metacharacters.

API Versioning

4 API Versioning Best Practices in 2023

Explore API versioning essentials and best practices for 2023. This guide covers various versioning strategies, emphasizing compatibility, stability, and optimized performance in API development within a dynamic DevOps environment.

Cloud Native

Cloud-Native Architecture: The 5 Key Principles Explained

Learn the 5 key principles of cloud-native architecture, emphasizing scalability, stateless design, and modern security.

Bash Scripting

Advanced Bash Scripting Course: Your Pathway to Command-Line Mastery

In the dynamic world of DevOps and system administration, command-line proficiency is a crucial skill. Bash, one of the most widely used command-line shells - and the default for most Unix-based systems, including popular Linux distributions - offers immense power and versatility. Mastering Bash scripting can give you a competitive

free week

Unlock DevOps Mastery with KodeKloud's Free Week

Unlock unparalleled DevOps expertise with KodeKloud's Free Week. Dive into specialized courses, hands-on labs, and gain insights from industry leaders. Embrace this transformative journey and redefine your DevOps potential.

Bash Scripting

How to Use Bash Getopts With Examples

Getopts is a powerful shell command used to parse command line options and arguments. It provides a structured way to handle complex input patterns, thereby making your scripts more readable and maintainable. In this blog post, we’ll start with an understanding of what positional parameters are and their inherent

Bash Scripting

How to Return Value From a Bash Function

Bash, one of the most popular shell scripting languages, handles functions a little differently from what you might expect if you're coming from other programming languages. In particular, returning values from Bash functions can be a bit tricky to understand for newcomers. In this blog post, we’ll

Bash Scripting

How to Extract Bash Substring

Extracting substrings from a larger string is a fundamental operation in text manipulation, which is an essential skill in Bash scripting. In this blog post, we'll explore three methods that you can use to extract substrings in Bash. We will first look at using Bash's built-in

Linux

4 Commands to Check File Size in Linux

Whether you need to manage disk space, transfer files over the network, or optimize system performance, knowing the file sizes in a Linux system plays a critical role. In this blog post, we’ll explore four different methods you can use to determine a file's size in Linux.

Bash Scripting

Eof Bash: What Is It and How Does It Work?

Have you ever come across the term EOF in a Bash script and wondered what it means or how to utilize this feature effectively? If you've found yourself asking these questions, then you're in the right place. In this blog post, we’ll dive deep into

Bash Scripting

How to Convert Bash String to Lowercase

String manipulation is a fundamental aspect of scripting in any programming language, and Bash is no exception. One such common task is to convert the case of strings, which is particularly useful in text processing and analysis. In this blog post, we’ll explore two methods of converting Bash string

Bash Scripting

Bash Compare Strings: How to Check if Two Strings Are Equal

Whether you’re validating user input or processing text data, knowing how to compare strings is an important skill. In this blog post, we’ll look at four different methods you can use to check if two strings are equal. We’ll use examples to explain each method, providing you

Bash Scripting

How to Make a Bash Script File Executable in Linux

A Bash script is essentially a text file containing a series of commands. To make a Bash script file executable means giving it permission to be run as a program. In this blog post, we'll start by taking a deep dive into the concept of file permissions in

Linux

How to Search Packages With Apt Search Command

When you want to install a package on Debian-based Linux distributions using apt, you need to know the exact name of the package. But what if you don’t remember the name? Maybe you remember a portion of a multi-word package name or a few distinct characters. How do you

Linux

How to Count the Number of Files in a Directory in Linux

Working with Linux often involves dealing with files. One common but deceptively complex task is counting the number of files in a directory. In this blog post, we will explore three different methods for counting the number of files in a directory, each with its own benefits and nuances. Let’

Bash Scripting

How to Check if a File Exists in Bash

Let's say you're creating a Bash script to save some data in a file. It's important to ensure that the file exists before you try to write to it. If not, your script may not work as expected. This is just one example. In

Linux

How to Find Out When a File Was Created in Linux

Keeping track of files in Linux is an important part of system administration. Whether you're investigating a security issue or debugging a program, the details of when a file was created can provide essential insights. In this blog post, we’ll discuss how to create a file in

Bash Scripting

How to Read a File Line by Line in Bash

When dealing with scripting and automation, file manipulation is an essential skill. Whether you’re analyzing log files, processing data sets, or parsing configuration files, the ability to read and interpret file content is critical. In this blog post, we’ll learn how to read a file line by line

shell scripting

How to Run Shell Script (.sh) Files in Linux

Shell scripts play an important role in the world of Linux. They help automate repetitive tasks and streamline complex procedures. This doesn’t just save users’ time—it significantly reduces the chance of human errors, resulting in more reliable outcomes and improved system stability. In this blog post, we’ll