一篇系统介绍 Shell 编程的文章，重点讲解如何编写健壮的 Shell 脚本，帮助程序员更好地掌握这门语言。
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可能每个程序员都会或多或少的被 Shell 折磨过，这篇文章就来系统地讲述 Shell 编程，重新认识一下这门即熟悉又陌生的语言， 当然，更重要的是介绍如何写出一份健壮的 Shell 脚本。https://liujiacai.net/blog/2024/04/05/robust-shell-scripting
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