http://blog.pdan.dev/tags/bash/ Recent content in Bash on myblog Hugo en-US Thu, 18 Sep 2025 21:29:01 +0800 http://blog.pdan.dev/posts/bash/ Thu, 18 Sep 2025 21:29:01 +0800 http://blog.pdan.dev/posts/bash/ <p>   </p> <p>   </p> <p>   </p> <p>   </p> <p><img src="images/img1.png" alt="img"></p> <p>   </p> <p>   </p> <p>   </p> <p>   </p> <p>   </p> <h2 id="using-variables-in-shell-scripts">Using Variables in Shell Scripts</h2> <p>Welcome back to the world of shell scripting. In the previous lesson, you crafted your very first shell script that printed &ldquo;Hello, World!&rdquo; to the screen. Today, we will take the next step by exploring how to use <strong>variables</strong> in shell scripts. This lesson will introduce you to variable declaration, reassignment, and some basic arithmetic operations.</p> <p>Using variables can make your scripts more dynamic and flexible, allowing you to store information, reuse values, and perform calculations. Let&rsquo;s get started!</p>