Shell – IT Exams Training

Master Shell Scripting Through Real-World Projects

July 22, 2025July 22, 2025admin

DevOps, the linchpin of modern software delivery, has redefined agility and speed. Yet, even with streamlined pipelines and continuous deployment frameworks, organizations remain tethered to reactionary practices. These practices, while historically necessary, are now significant impediments in high-velocity environments. The result? Sluggish mean time to repair (MTTR), operational chaos, and staggering financial losses. According to […]

SSH Connection Blocked? Here’s How to Fix Host Key Verification Errors

July 11, 2025July 11, 2025admin

SSH, or Secure Shell, is a widely used cryptographic protocol that allows users to securely access and manage remote systems. It forms the backbone of remote administration for Unix-like systems. The core of its security mechanism lies in encrypted communication and authentication using keys. One of the most essential components in this secure interaction is […]

Executing Shell Script (.sh) Files in Linux: A Step-by-Step Guide

July 11, 2025July 11, 2025admin

Shell scripts are text files containing a series of commands designed to be executed by the shell, which is a command-line interpreter. These scripts are often used to automate routine or repetitive tasks, such as setting up environments, managing files, or performing system monitoring. In Linux, shell scripts typically use the .sh file extension and […]

The Fundamentals of Bash Regex and Shell Scripting

July 11, 2025July 11, 2025admin

Regular expressions, or regex, offer a structured way to identify patterns in text and play a significant role in streamlining tasks in shell scripting. Whether you are handling logs, filtering outputs, validating formats, or parsing input data, regex can make your scripts significantly more powerful and efficient. This article, the first in a three-part series, […]