updates for version 1.5

learnbyexample · Apr 23, 2021 · 0bbf511 · 0bbf511
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diff --git a/README.md b/README.md
@@ -6,7 +6,7 @@ Example based guide to mastering GNU sed.
     <img src="./images/sed.png" width="320px" height="400px" />
 </p>
 
-The book also includes exercises to test your understanding, which is presented together as a single file in this repo - [Exercises.md](./exercises/Exercises.md)
+The book also includes exercises to test your understanding, which is presented together as a single file in this repo — [Exercises.md](./exercises/Exercises.md)
 
 For solutions to the exercises, see [Exercise_solutions.md](./exercises/Exercise_solutions.md).
 
@@ -21,10 +21,10 @@ You can purchase the book using these links:
 * https://gumroad.com/l/gnu_sed
 * https://leanpub.com/gnu_sed
 * You can also get the book as part of **Magical one-liners** bundle from https://gumroad.com/l/oneliners or https://leanpub.com/b/oneliners
-* You can also get the book as part of **Awesome Regex** bundle from https://leanpub.com/b/regex or https://gumroad.com/l/regex
+* You can also get the book as part of **Awesome Regex** bundle from https://gumroad.com/l/regex or https://leanpub.com/b/regex
 * See https://learnbyexample.github.io/books/ for list of other books
 
-For a preview of the book, see [sample chapters](https://github.com/learnbyexample/learn_gnused/blob/master/sample_chapters/sed_sample_chapters.pdf)
+For a preview of the book, see [sample chapters](https://github.com/learnbyexample/learn_gnused/blob/master/sample_chapters/gnu_sed_sample.pdf)
 
 The book can also be [viewed as a single markdown file in this repo](./gnu_sed.md). See my blogpost on [generating pdf from markdown using pandoc](https://learnbyexample.github.io/tutorial/ebook-generation/customizing-pandoc/) if you are interested in the ebook creation process.
 
@@ -34,11 +34,11 @@ For web version of the book, visit https://learnbyexample.github.io/learn_gnused
 
 # Feedback
 
-Please open an issue if you spot any typo/errors.
+[Open an issue](https://github.com/learnbyexample/learn_gnused/issues) if you spot any typo/errors.
 
-I'd also highly appreciate your feedback about the book.
+:warning: :warning: Please DO NOT submit pull requests. Main reason being any modification requires changes in multiple places.
 
-Goodreads: https://www.goodreads.com/book/show/48641172-gnu-sed
+I'd also highly appreciate your feedback about the book.
 
 Twitter: https://twitter.com/learn_byexample
 
@@ -65,11 +65,11 @@ Twitter: https://twitter.com/learn_byexample
 
 # Acknowledgements
 
-* [GNU sed documentation](https://www.gnu.org/software/sed/manual/sed.html) - manual and examples
-* [stackoverflow](https://stackoverflow.com/) and [unix.stackexchange](https://unix.stackexchange.com/) - for getting answers to pertinent questions on `bash`, `sed` and other commands
-* [tex.stackexchange](https://tex.stackexchange.com/) - for help on `pandoc` and `tex` related questions
-* Cover image
-    * [LibreOffice Draw](https://www.libreoffice.org/discover/draw/)
+* [GNU sed documentation](https://www.gnu.org/software/sed/manual/sed.html) — manual and examples
+* [stackoverflow](https://stackoverflow.com/) and [unix.stackexchange](https://unix.stackexchange.com/) — for getting answers to pertinent questions on `bash`, `sed` and other commands
+* [tex.stackexchange](https://tex.stackexchange.com/) — for help on [pandoc](https://github.com/jgm/pandoc/) and `tex` related questions
+* [LibreOffice Draw](https://www.libreoffice.org/discover/draw/) — cover image
+* [pngquant](https://pngquant.org/) and [svgcleaner](https://github.com/RazrFalcon/svgcleaner) for optimizing images
 * [softwareengineering.stackexchange](https://softwareengineering.stackexchange.com/questions/39/whats-your-favourite-quote-about-programming) and [skolakoda](https://skolakoda.org/programming-quotes) for programming quotes
 * [Warning](https://commons.wikimedia.org/wiki/File:Warning_icon.svg) and [Info](https://commons.wikimedia.org/wiki/File:Info_icon_002.svg) icons by [Amada44](https://commons.wikimedia.org/wiki/User:Amada44) under public domain
 * [arifmahmudrana](https://github.com/arifmahmudrana) for spotting an ambiguous explanation
@@ -86,3 +86,4 @@ Special thanks to all my friends and online acquaintances for their help, suppor
 The book is licensed under a [Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License](https://creativecommons.org/licenses/by-nc-sa/4.0/)
 
 The code snippets are licensed under MIT, see [LICENSE](./LICENSE) file
+
diff --git a/Version_changes.md b/Version_changes.md
@@ -1,5 +1,13 @@
 <br>
 
+### 1.5
+
+* Clarified use of `/dev/stdin` with the `r` command
+* Updated timing data for speed comparison examples
+* Corrected various typos, improved descriptions, comments, external links, etc
+
+<br>
+
 ### 1.4
 
 * Clarified BRE vs ERE difference for line anchor escaping

diff --git a/exercises/Exercise_solutions.md b/exercises/Exercise_solutions.md
@@ -1,6 +1,6 @@
 # Exercise solutions
 
-Exercise related files are available from [exercises folder](https://github.com/learnbyexample/learn_gnused/tree/master/exercises)
+>![info](../images/info.svg) Exercise related files are available from [exercises folder](https://github.com/learnbyexample/learn_gnused/tree/master/exercises).
 
 <br>
 
@@ -473,7 +473,7 @@ sososoXsososo
 Input is a file downloaded from internet as shown below.
 
 ```bash
-$ wget https://www.gutenberg.org/files/345/345.txt -O dracula.txt
+$ wget https://www.gutenberg.org/files/345/old/345.txt -O dracula.txt
 
 $ sed -nE '/professor/I{/quip|this/p}' dracula.txt
 equipment of a professor of the healing craft. When we were shown in,

diff --git a/exercises/Exercises.md b/exercises/Exercises.md
@@ -1,6 +1,8 @@
 # Exercises
 
-Exercise related files are available from [exercises folder](https://github.com/learnbyexample/learn_gnused/tree/master/exercises)
+>![info](../images/info.svg) Exercise related files are available from [exercises folder](https://github.com/learnbyexample/learn_gnused/tree/master/exercises).
+
+>![info](../images/info.svg) For solutions, see [Exercise_solutions.md](https://github.com/learnbyexample/learn_gnused/blob/master/exercises/Exercise_solutions.md).
 
 <br>
 
@@ -464,7 +466,7 @@ sososoXsososo
 Input is a file downloaded from internet as shown below.
 
 ```bash
-$ wget https://www.gutenberg.org/files/345/345.txt -O dracula.txt
+$ wget https://www.gutenberg.org/files/345/old/345.txt -O dracula.txt
 
 $ sed ##### add your solution here
 equipment of a professor of the healing craft. When we were shown in,