Bash腳本進階學習 - 深入探索shell scripting之藝術

作者：Mendel Cooper; Email：thegrendel.abs@gmail.com

譯者：KunYu Chen, FangWei Wang, Chih-Che Chang, Bo-Jun Fang, Goldie Lin, Hao-Ting

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This tutorial assumes no previous knowledge of scripting or programming, yet progresses rapidly toward an intermediate/advanced level of instruction . . . all the while sneaking in little nuggets of UNIX® wisdom and lore.

• 本書涵蓋範圍包含shell scripting初級(無程式設計或腳本撰寫相關經驗的人皆可看懂)中級與高級知識，並從中帶領讀者淺嚐UNIX®的知識及智慧。

It serves as a textbook, a manual for self-study, and as a reference and source of knowledge on shell scripting techniques.

本教材可視為教科書、自學手冊或學習shell scripting技術之參考文獻。

The exercises and heavily-commented examples invite active reader participation, under the premise that the only way to really learn scripting is to write scripts.

本書提供練習題與含有大量註解的範例，希望能讓讀者有更多動手實做的機會。因為要真正學好scripting，就是得實際動手寫。

This book is suitable for classroom use as a general introduction to programming concepts. This document is herewith granted to the Public Domain. No copyright!

本書適用於一般教授「程式設計概論」之課堂。這本書是寫給社會大眾的。因此，不用擔心版權問題。因為本書，無版權！

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For Anita, the source of all the magic

本書獻給Anita，妳是驅使這本書完成的動力來源。

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目錄

• Part 1. 引言

  • 1 Shell 程式設計！
  • 2 從 Sha-bang (#!) 入門
  • 2.1 執行腳本
  • 2.2 初步練習

• Part 2. 基礎篇

  • 3 特殊符號
  • 4 變數與參數簡介
  • 4.1 變數替換
  • 4.2 變數值
  • 4.3 Bash 變數是沒有特定類型的
  • 4.4 特殊的變數型態
  • 5 引號使用
  • 5.1 引用變數
  • 5.2 跳脫
  • 6 退出及退出狀態
  • 7 測試
  • 7.1 測試結構
  • 7.2 檔案測試運算子
  • 8 運算元、運算子及其他相關主題
  • 8.1 運算子
  • 8.2 數字常數
  • 8.3 雙小括號結構
  • 8.4 運算子優先權

• Part 3. 進階篇

  • 9 再論變數
  • 9.1 內部變數
  • 9.2 變數型態：宣告與設定
  • 9.3 $RAMDOM: 產生隨機變數
  • 10 操弄變數
  • 10.1 操弄字串
  • 11 迴圈(Loops)與分流(Branches)
  • 11.1 迴圈
  • 12 指令替換
  • 13 算術擴展
  • 14 課間休息

• Part 4. 指令

  • 15 Internal Commands and Builtins
  • 16 External Filters, Programs and Commands
  • 17 System and Administrative Commands

• Part 5. 進階課題

  • 18 Regular Expressions
  • 19 Here Documents
  • 20 I/O Redirection
  • 21 Subshells
  • 22 Restricted Shells
  • 23 Process Substitution
  • 24 Functions
  • 25 Aliases
  • 26 List Constructs
  • 27 Arrays
  • 28 Indirect References
  • 29 /dev and /proc
  • 30 Network Programming
  • 31 Of Zeros and Nulls
  • 32 Debugging
  • 33. Options
  • 34. Gotchas
  • 35. Scripting With Style
  • 36. Miscellany
  • 37. Bash, versions 2, 3, and 4
  • 38. Endnotes
  • 38.1. Author's Note
  • 38.2 About the Author
  • 38.3 Where to Go For Help
  • 38.4 Tools Used to Produce This Book
  • 38.5 Credits
  • 38.6 Disclaimer

  source: http://tldp.org/LDP/abs/html/