added start building

07-Nephology.Rmd

@@ -685,9 +685,12 @@ look at some examples of more complex table entries:
 
 Besides numbers and the star there are a few other characters that you can use
 in `cron` table columns including a hyphen (`-`) for specifying ranges and a
-comma (`,`) for specifying lists of items. Let's take a look at another example
+comma (`,`) for specifying lists of items. For example `00-29` in the Minutes
+column would specify the first thirty minutes of an hour, while `1,5` in the
+Day of Week column would specify Monday and Friday.
+Let's take a look at another example
 of a `cron` table that uses hyphens and ranges so you can get a sense of how
-each of these characters works.
+each character works.
 
 ```
 # m h  dom mon dow   command
@@ -705,12 +708,53 @@ can stretch! If you're familiar with the social network
 accounts which create posts automatically like
 [Emoji Aquarium](https://twitter.com/emojiaquarium),
 [Old Fruit Pictures](https://twitter.com/pomological), or
-[Endless Screaming](https://twitter.com/infinite_scream).
+[Endless Screaming](https://twitter.com/infinite_scream). Many of these "bot"
+accounts are powered by `cron`, which uses Twitter's HTTP API to post tweets
+regularly.
 
 ### Summary
 
-### Exercises
+- `scp` copies files between a cloud computer and your personal computer. Use
+the `-r` flag in order to copy directories.
+- `curl` allows you to send HTTP requests to other servers. Use the `-O` flag to
+download files with `curl`.
+- `ps -A` lists all of the programs running in the background of your computer.
+- `cron` allows you to schedule when programs are run. Use `crontab -e` in order
+to edit the `cron` table.
 
+### Exercises
 
+1. Write a bash script that takes a file path as an argument and copies that
+file to a designated folder on your server.
+2. Find a file online that changes periodically, then write a program to
+download that file every time it changes.
+2. Try creating your own Twitter or GitHub bot with the 
+[Twitter API](https://dev.twitter.com/rest/public) or the
+[GitHub API](https://developer.github.com/v3/).
 
 ## Shutting Down a Server
+
+In order to avoid using more DigitalOcean credits than we have to or
+being charged for using the service make sure to **destroy** any DigitalOcean
+droplets that you started. When you destroy a droplet all files
+on the droplet are gone forever, so please be sure that you don't have any
+important information on a droplet before you destroy it. If there are files
+you want to save on your droplet use `scp` in order to copy them to your local
+machine. Let's walk through destorying a droplet. Go back to 
+[DigitalOcean](https://m.do.co/c/530d6cfa2b37) and log in. You should then see
+a listing of all of your droplets:
+
+![](img/do-droplets-list.png)
+
+Click on **More** on the right side of the screen and a menu should appear.
+Click **Destroy** at the bottom of this menu. Then this screen should appear:
+
+![](img/do-destroy-button.png)
+
+Click the **Destroy** button and then click **Confirm** in the menu that pops
+up. Your droplet should now be destroyed. If you have no active droplets then
+the main droplets page should look like this:
+
+![](img/do-fresh.png)
+
+Congratulations on your new cloud computing skills!

08-Start-Building.Rmd

@@ -0,0 +1,69 @@
+# Start Building
+
+## Next Steps
+
+We've reached the end of this book, which means that you now have a formidable
+foundation in using Unix. Congratulations! As the title of this book suggests
+Unix serves mostly as a workbench - a set of tools for building amazing digital
+creations. However, what you can create with Unix is usually not made out of
+Unix's constituent parts. You might use a hammer and saw to build a good
+birdhouse, but the birdhouse itself isn't made out of hammers. Working knowledge
+of Unix is best complemented by knowing at least one other programming langauge.
+Here are a few suggestions about how you can continue your computing and
+programming education.
+
+[**Python**](https://www.python.org/) is an approachable and essentiall language
+for anyone interested in computing. If you don't have any programming experience
+outside of this book, I very highly recommend learning Python. My favorite book
+on the subject is [Learn Python the Hard Way](https://learnpythonthehardway.org/book/)
+by Zed Shaw. Philip Guo's [Python Tutor](http://pythontutor.com/) allows you to
+visualize how Python is working under-the-hood, which allows you to develop a
+better intuition about the code you're writing. The pairing of those two
+resources is currently the best way to learn how to write software outside of
+formal university or corporate training. Once you have some Python expereince
+you can try building your own HTTP API with [Flask](http://flask.pocoo.org/).
+
+[**R**](https://www.r-project.org/) is general purpose programming language
+designed for folks who are interested in data science, analysis, modeling, and
+visualization. R is also fantastic for making digital documents: this book was
+created with R! If you want to get started with R I recommend the book 
+[R Programming for Data Science](https://leanpub.com/rprogramming), the
+[Swirl](http://swirlstats.com/) software package, and the interactive R
+tutorial website called [DataCamp](https://www.datacamp.com/).
+
+[**Javascript**](https://developer.mozilla.org/en-US/docs/Web/JavaScript) is 
+the main language that powers the internet and it forms the backbone of web
+application programming. The Mozilla Development Network has 
+[wonderful tutorials](https://developer.mozilla.org/en-US/docs/Web/Tutorials)
+about HTML, CSS, and Javascript. Usually you use Javascript to manipulate
+HTML and CSS, so learning about all three is important! I also recommend
+[NodeSchool](https://nodeschool.io/) for purely learning about Javascipt with
+Unix.
+
+## Giving Feedback
+
+Thank you so much for reading this book! If you'd like to discuss the book or
+you have any feedback I would love to hear from you. The best way to contact me
+is [on Twitter](https://twitter.com/seankross).
+
+Now that you know how to use Git and GitHub you can submit changes that you
+think should be made to this book including fixing typos and correcting errors.
+You can find the repositoiry for this book
+[here](https://github.com/seankross/the-unix-workbench). Fork the repository,
+and make your changes to the approproate `.Rmd` file (just treat it like a
+regular Markdown file). Add, commit, and push your changes, then send me a pull
+request! While you're on the GitHub if you wouldn't mind giving this book's
+repository a [**Star**](https://github.com/seankross/the-unix-workbench) I 
+would really appreciate it so that others can find this book more easily.
+
+## Using this Book
+
+This book is released under a [CC0](https://creativecommons.org/publicdomain/zero/1.0/) 
+license, meaning that it is dedicated to the public domain. If you think this
+book is worth paying for or you want to support the creation of more open source 
+educational materials then consider buying the book 
+on [Leanpub](https://leanpub.com/theunixworkbench) where you are free to pay 
+what you want, or send me a few dollars via [PayPal](https://www.paypal.me/seankross/5).
+
+If you use this book as part of a course or in any other setting please let me
+know!

_bookdown.yml

@@ -2,6 +2,6 @@ book_filename: "the-unix-workbench"
 chapter_name: "Chapter "
 repo: https://github.com/seankross/the-unix-workbench
 output_dir: docs
-rmd_files: ["index.Rmd", "01-What-is-Unix.Rmd", "02-Getting-Unix.Rmd", "03-Command-Line-Basics.Rmd", "04-Working-with-Unix.Rmd", "05-Bash-Programming.Rmd", "06-Git-and-GitHub.Rmd", "07-Nephology.Rmd"]
+rmd_files: ["index.Rmd", "01-What-is-Unix.Rmd", "02-Getting-Unix.Rmd", "03-Command-Line-Basics.Rmd", "04-Working-with-Unix.Rmd", "05-Bash-Programming.Rmd", "06-Git-and-GitHub.Rmd", "07-Nephology.Rmd", "08-Start-Building.Rmd"]
 clean: [packages.bib, bookdown.bbl]
 new_session: yes

docs/07-Nephology.md

@@ -722,9 +722,12 @@ look at some examples of more complex table entries:
 
 Besides numbers and the star there are a few other characters that you can use
 in `cron` table columns including a hyphen (`-`) for specifying ranges and a
-comma (`,`) for specifying lists of items. Let's take a look at another example
+comma (`,`) for specifying lists of items. For example `00-29` in the Minutes
+column would specify the first thirty minutes of an hour, while `1,5` in the
+Day of Week column would specify Monday and Friday.
+Let's take a look at another example
 of a `cron` table that uses hyphens and ranges so you can get a sense of how
-each of these characters works.
+each character works.
 
 ```
 # m h  dom mon dow   command
@@ -742,12 +745,53 @@ can stretch! If you're familiar with the social network
 accounts which create posts automatically like
 [Emoji Aquarium](https://twitter.com/emojiaquarium),
 [Old Fruit Pictures](https://twitter.com/pomological), or
-[Endless Screaming](https://twitter.com/infinite_scream).
+[Endless Screaming](https://twitter.com/infinite_scream). Many of these "bot"
+accounts are powered by `cron`, which uses Twitter's HTTP API to post tweets
+regularly.
 
 ### Summary
 
-### Exercises
+- `scp` copies files between a cloud computer and your personal computer. Use
+the `-r` flag in order to copy directories.
+- `curl` allows you to send HTTP requests to other servers. Use the `-O` flag to
+download files with `curl`.
+- `ps -A` lists all of the programs running in the background of your computer.
+- `cron` allows you to schedule when programs are run. Use `crontab -e` in order
+to edit the `cron` table.
 
+### Exercises
 
+1. Write a bash script that takes a file path as an argument and copies that
+file to a designated folder on your server.
+2. Find a file online that changes periodically, then write a program to
+download that file every time it changes.
+2. Try creating your own Twitter or GitHub bot with the 
+[Twitter API](https://dev.twitter.com/rest/public) or the
+[GitHub API](https://developer.github.com/v3/).
 
 ## Shutting Down a Server
+
+In order to avoid using more DigitalOcean credits than we have to or
+being charged for using the service make sure to **destroy** any DigitalOcean
+droplets that you started. When you destroy a droplet all files
+on the droplet are gone forever, so please be sure that you don't have any
+important information on a droplet before you destroy it. If there are files
+you want to save on your droplet use `scp` in order to copy them to your local
+machine. Let's walk through destorying a droplet. Go back to 
+[DigitalOcean](https://m.do.co/c/530d6cfa2b37) and log in. You should then see
+a listing of all of your droplets:
+
+![](img/do-droplets-list.png)
+
+Click on **More** on the right side of the screen and a menu should appear.
+Click **Destroy** at the bottom of this menu. Then this screen should appear:
+
+![](img/do-destroy-button.png)
+
+Click the **Destroy** button and then click **Confirm** in the menu that pops
+up. Your droplet should now be destroyed. If you have no active droplets then
+the main droplets page should look like this:
+
+![](img/do-fresh.png)
+
+Congratulations on your new cloud computing skills!

docs/08-Start-Building.md

@@ -0,0 +1,69 @@
+# Start Building
+
+## Next Steps
+
+We've reached the end of this book, which means that you now have a formidable
+foundation in using Unix. Congratulations! As the title of this book suggests
+Unix serves mostly as a workbench - a set of tools for building amazing digital
+creations. However, what you can create with Unix is usually not made out of
+Unix's constituent parts. You might use a hammer and saw to build a good
+birdhouse, but the birdhouse itself isn't made out of hammers. Working knowledge
+of Unix is best complemented by knowing at least one other programming langauge.
+Here are a few suggestions about how you can continue your computing and
+programming education.
+
+[**Python**](https://www.python.org/) is an approachable and essentiall language
+for anyone interested in computing. If you don't have any programming experience
+outside of this book, I very highly recommend learning Python. My favorite book
+on the subject is [Learn Python the Hard Way](https://learnpythonthehardway.org/book/)
+by Zed Shaw. Philip Guo's [Python Tutor](http://pythontutor.com/) allows you to
+visualize how Python is working under-the-hood, which allows you to develop a
+better intuition about the code you're writing. The pairing of those two
+resources is currently the best way to learn how to write software outside of
+formal university or corporate training. Once you have some Python expereince
+you can try building your own HTTP API with [Flask](http://flask.pocoo.org/).
+
+[**R**](https://www.r-project.org/) is general purpose programming language
+designed for folks who are interested in data science, analysis, modeling, and
+visualization. R is also fantastic for making digital documents: this book was
+created with R! If you want to get started with R I recommend the book 
+[R Programming for Data Science](https://leanpub.com/rprogramming), the
+[Swirl](http://swirlstats.com/) software package, and the interactive R
+tutorial website called [DataCamp](https://www.datacamp.com/).
+
+[**Javascript**](https://developer.mozilla.org/en-US/docs/Web/JavaScript) is 
+the main language that powers the internet and it forms the backbone of web
+application programming. The Mozilla Development Network has 
+[wonderful tutorials](https://developer.mozilla.org/en-US/docs/Web/Tutorials)
+about HTML, CSS, and Javascript. Usually you use Javascript to manipulate
+HTML and CSS, so learning about all three is important! I also recommend
+[NodeSchool](https://nodeschool.io/) for purely learning about Javascipt with
+Unix.
+
+## Giving Feedback
+
+Thank you so much for reading this book! If you'd like to discuss the book or
+you have any feedback I would love to hear from you. The best way to contact me
+is [on Twitter](https://twitter.com/seankross).
+
+Now that you know how to use Git and GitHub you can submit changes that you
+think should be made to this book including fixing typos and correcting errors.
+You can find the repositoiry for this book
+[here](https://github.com/seankross/the-unix-workbench). Fork the repository,
+and make your changes to the approproate `.Rmd` file (just treat it like a
+regular Markdown file). Add, commit, and push your changes, then send me a pull
+request! While you're on the GitHub if you wouldn't mind giving this book's
+repository a [**Star**](https://github.com/seankross/the-unix-workbench) I 
+would really appreciate it so that others can find this book more easily.
+
+## Using this Book
+
+This book is released under a [CC0](https://creativecommons.org/publicdomain/zero/1.0/) 
+license, meaning that it is dedicated to the public domain. If you think this
+book is worth paying for or you want to support the creation of more open source 
+educational materials then consider buying the book 
+on [Leanpub](https://leanpub.com/theunixworkbench) where you are free to pay 
+what you want, or send me a few dollars via [PayPal](https://www.paypal.me/seankross/5).
+
+If you use this book as part of a course or in any other setting please let me
+know!

docs/acknowledgements.html

@@ -26,7 +26,7 @@
 <meta name="author" content="Sean Kross">
 
 
-<meta name="date" content="2017-06-08">
+<meta name="date" content="2017-06-09">
 
   <meta name="viewport" content="width=device-width, initial-scale=1">
   <meta name="apple-mobile-web-app-capable" content="yes">
@@ -229,6 +229,11 @@
 </ul></li>
 <li class="chapter" data-level="7.5" data-path="nephology.html"><a href="nephology.html#shutting-down-a-server"><i class="fa fa-check"></i><b>7.5</b> Shutting Down a Server</a></li>
 </ul></li>
+<li class="chapter" data-level="8" data-path="start-building.html"><a href="start-building.html"><i class="fa fa-check"></i><b>8</b> Start Building</a><ul>
+<li class="chapter" data-level="8.1" data-path="start-building.html"><a href="start-building.html#next-steps"><i class="fa fa-check"></i><b>8.1</b> Next Steps</a></li>
+<li class="chapter" data-level="8.2" data-path="start-building.html"><a href="start-building.html#giving-feedback"><i class="fa fa-check"></i><b>8.2</b> Giving Feedback</a></li>
+<li class="chapter" data-level="8.3" data-path="start-building.html"><a href="start-building.html#using-this-book"><i class="fa fa-check"></i><b>8.3</b> Using this Book</a></li>
+</ul></li>
 <li class="divider"></li>
 <li><a href="https://github.com/rstudio/bookdown" target="blank">Published with bookdown</a></li>
 

docs/bash-programming.html

@@ -26,7 +26,7 @@
 <meta name="author" content="Sean Kross">
 
 
-<meta name="date" content="2017-06-08">
+<meta name="date" content="2017-06-09">
 
   <meta name="viewport" content="width=device-width, initial-scale=1">
   <meta name="apple-mobile-web-app-capable" content="yes">
@@ -229,6 +229,11 @@
 </ul></li>
 <li class="chapter" data-level="7.5" data-path="nephology.html"><a href="nephology.html#shutting-down-a-server"><i class="fa fa-check"></i><b>7.5</b> Shutting Down a Server</a></li>
 </ul></li>
+<li class="chapter" data-level="8" data-path="start-building.html"><a href="start-building.html"><i class="fa fa-check"></i><b>8</b> Start Building</a><ul>
+<li class="chapter" data-level="8.1" data-path="start-building.html"><a href="start-building.html#next-steps"><i class="fa fa-check"></i><b>8.1</b> Next Steps</a></li>
+<li class="chapter" data-level="8.2" data-path="start-building.html"><a href="start-building.html#giving-feedback"><i class="fa fa-check"></i><b>8.2</b> Giving Feedback</a></li>
+<li class="chapter" data-level="8.3" data-path="start-building.html"><a href="start-building.html#using-this-book"><i class="fa fa-check"></i><b>8.3</b> Using this Book</a></li>
+</ul></li>
 <li class="divider"></li>
 <li><a href="https://github.com/rstudio/bookdown" target="blank">Published with bookdown</a></li>
 

docs/command-line-basics.html

@@ -26,7 +26,7 @@
 <meta name="author" content="Sean Kross">
 
 
-<meta name="date" content="2017-06-08">
+<meta name="date" content="2017-06-09">
 
   <meta name="viewport" content="width=device-width, initial-scale=1">
   <meta name="apple-mobile-web-app-capable" content="yes">
@@ -229,6 +229,11 @@
 </ul></li>
 <li class="chapter" data-level="7.5" data-path="nephology.html"><a href="nephology.html#shutting-down-a-server"><i class="fa fa-check"></i><b>7.5</b> Shutting Down a Server</a></li>
 </ul></li>
+<li class="chapter" data-level="8" data-path="start-building.html"><a href="start-building.html"><i class="fa fa-check"></i><b>8</b> Start Building</a><ul>
+<li class="chapter" data-level="8.1" data-path="start-building.html"><a href="start-building.html#next-steps"><i class="fa fa-check"></i><b>8.1</b> Next Steps</a></li>
+<li class="chapter" data-level="8.2" data-path="start-building.html"><a href="start-building.html#giving-feedback"><i class="fa fa-check"></i><b>8.2</b> Giving Feedback</a></li>
+<li class="chapter" data-level="8.3" data-path="start-building.html"><a href="start-building.html#using-this-book"><i class="fa fa-check"></i><b>8.3</b> Using this Book</a></li>
+</ul></li>
 <li class="divider"></li>
 <li><a href="https://github.com/rstudio/bookdown" target="blank">Published with bookdown</a></li>