Mastering Linux Shell Scripting 2nd Edition by Mokhtar Ebrahim Andrew Mallett 1788990158 9781788990158

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ISBN 10: 1788990158
ISBN 13: 9781788990158
Author: Mokhtar Ebrahim, Andrew Mallett

If you are a Linux administrator or a system administrator and are interested in automating tasks in your daily lives, saving time and effort, this book is for you. Basic shell scripting and command-line experience will be required. Familiarity with the tasks you need to automate will be helpful.

Mastering Linux Shell Scripting 2nd Table of contents

1. Mastering Linux Shell Scripting Second Edition
2. Packt Upsell
3. Why subscribe?
4. PacktPub.com
5. Contributors
6. About the authors
7. About the reviewer
8. Packt is searching for authors like you
9. Preface
10. Who this book is for
11. What this book covers
12. To get the most out of this book
13. Download the example code files
14. Download the color images
15. Conventions used
16. Get in touch
17. Reviews
18. The What and Why of Scripting with Bash
19. Technical requirements
20. Types of Linux shells
21. What is bash scripting?
22. The bash command hierarchy
23. Command type
24. Command PATH
25. Preparing text editors for scripting
26. Configuring vim
27. Configuring nano
28. Configuring gedit
29. Creating and executing scripts
30. Hello World!
31. Executing the script
32. Checking the exit status
33. Ensuring a unique name
34. Hello Dolly!
35. Running the script with arguments
36. The importance of correct quotes
37. Printing the script name
38. Declaring variables
39. User-defined variables
40. Environment variables
41. Variable scope
42. Command substitution
43. Debugging your scripts
44. Summary
45. Questions
46. Further reading
47. Creating Interactive Scripts
48. Technical requirements
49. Using echo with options
50. Basic script using read
51. Script comments
52. Enhancing scripts with read prompts
53. Limiting the number of entered characters
54. Controlling the visibility of the entered text
55. Passing options
56. Passing parameters with options
57. Read options values
58. Try to be standard
59. Enhancing learning with simple scripts
60. Backing-up with scripts
61. Connecting to a server
62. Version 1 – ping
63. Version 2 – SSH
64. Version 3 – MySQL/MariaDB
65. Reading files
66. Summary
67. Questions
68. Further reading
69. Conditions Attached
70. Technical requirements
71. Simple decision paths using command-line lists
72. Verifying user input with lists
73. Using the test shell built-in
74. Testing strings
75. Testing integers
76. Testing file types
77. Creating conditional statements using if
78. Extending if with else
79. Test command with the if command
80. Checking strings
81. Checking files and directories
82. Checking numbers
83. Combining tests
84. More conditions with elif
85. Creating the backup2.sh using elif
86. Using case statements
87. Recipe – building a frontend with grep
88. Summary
89. Questions
90. Further reading
91. Creating Code Snippets
92. Technical requirements
93. Abbreviations
94. Using code snippets
95. Bringing color to the Terminal
96. Creating snippets using VS Code
97. Summary
98. Questions
99. Further reading
100. Alternative Syntax
101. Technical requirement
102. Recapping the test command
103. Testing files
104. Adding logic
105. Square brackets as not seen before
106. Providing parameter defaults
107. Variables
108. Special parameters
109. Setting defaults
110. When in doubt – quote!
111. Advanced tests using [[
112. White space
113. Other advanced features
114. Pattern matching
115. Regular expressions
116. Regular expression script
117. Arithmetic operations using ((
118. Simple math
119. Parameter manipulation
120. Standard arithmetic tests
121. Summary
122. Questions
123. Further reading
124. Iterating with Loops
125. Technical requirement
126. for loops
127. Advanced for loops
128. The IFS
129. Counting directories and files
130. C-style for loops
131. Nested loops
132. Redirecting loop output
133. Controlling the loop
134. while loops and until loops
135. Reading input from files
136. Creating operator menus
137. Summary
138. Questions
139. Further reading
140. Creating Building Blocks with Functions
141. Technical requirements
142. Introducing functions
143. Passing parameters to functions
144. Passing arrays
145. Variable scope
146. Returning values from functions
147. Recursive functions
148. Using functions in menus
149. Summary
150. Questions
151. Further reading
152. Introducing the Stream Editor
153. Technical requirements
154. Using grep to display text
155. Displaying received data on an interface
156. Displaying user account data
157. Listing the number of CPUs in a system
158. Parsing CSV files
159. The CSV file
160. Isolating catalog entries
161. Understanding the basics of sed
162. The substitute command
163. Global replacement
164. Limiting substitution
165. Editing the file
166. Other sed commands
167. The delete command
168. The insert and append commands
169. The change command
170. The transform command
171. Multiple sed commands
172. Summary
173. Questions
174. Further reading
175. Automating Apache Virtual Hosts
176. Technical requirements
177. Apache name-based Virtual Hosts
178. Creating the virtual host template
179. First steps
180. Isolating lines
181. sed script files
182. Automating virtual host creation
183. Prompting for data during site creation
184. Summary
185. Questions
186. Further reading
187. AWK Fundamentals
188. Technical requirements
189. The history behind AWK
190. Displaying and filtering content from files
191. AWK variables
192. User-defined variables
193. Conditional statements
194. The if command
195. while loops
196. for loops
197. Formatting output
198. Further filtering to display users by UID
199. AWK control files
200. Built-in functions
201. Summary
202. Questions
203. Further reading
204. Regular Expressions
205. Technical requirements
206. Regular expression engines
207. Defining BRE patterns
208. Anchor characters
209. The dot character
210. The character class
211. Ranges of characters
212. Special character classes
213. The asterisk
214. Defining ERE patterns
215. The question mark
216. The plus sign
217. Curly braces
218. The pipe character
219. Expression grouping
220. Using grep
221. Summary
222. Questions
223. Further reading
224. Summarizing Logs with AWK
225. Technical requirements
226. The HTTPD log file format
227. Displaying data from web logs
228. Selecting entries by date
229. Summarizing 404 errors
230. Summarizing HTTP access codes
231. Resources hits
232. Identify image hotlinking
233. Displaying the highest ranking IP address
234. Displaying the browser data
235. Working with email logs
236. Summary
237. Questions
238. Further reading
239. A Better lastlog with AWK
240. Technical requirements
241. Using AWK ranges to exclude data
242. The lastlog command
243. Horizontally filtering rows with AWK
244. Counting matched rows
245. Conditions based on the number of fields
246. Manipulating the AWK record separator to report on XML data
247. Apache Virtual Hosts
248. XML catalog
249. Summary
250. Questions
251. Further reading
252. Using Python as a Bash Scripting Alternative
253. Technical requirements
254. What is Python?
255. Saying Hello World the Python way
256. Pythonic arguments
257. Supplying arguments
258. Counting arguments
259. Significant whitespace
260. Reading user input
261. Using Python to write to files
262. String manipulation
263. Summary
264. Questions
265. Further reading
266. Assessments

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Tags: Mastering Linux, Shell Scripting, Mokhtar Ebrahim Andrew Mallett