Скачать или смотреть Day 1 Shell Script Introduction Part 2

🚀 Day 1 – Shell Scripting Basics for Beginners 🚀

In this first lesson of the Shell Scripting series, we’ll cover the absolute fundamentals you need to get started with scripting in Linux/Unix. Whether you’re new to programming or just beginning with Linux, this video is the perfect starting point!

What is a Shell?
• A Shell is a command-line interpreter.
• It takes commands from the user and passes them to the Operating System for execution.

Common Shells in Linux/Unix:
• sh → Bourne Shell
• bash → Bourne Again Shell (most common)
• dash → Debian Almquist Shell (lightweight)
• csh → C Shell
• ksh → Korn Shell

What is a Shell Script?
• A Shell Script is a text file containing a series of shell commands.
• File extension: .sh
• Scripts are executed sequentially by the shell.

Shebang (#!)
• The shebang tells the system which interpreter to use to run the script.
• Example:


#!/bin/bash

This line specifies that the script should be run with bash.