index.html

---
layout: workshop      # DON'T CHANGE THIS.
root: .               # DON'T CHANGE THIS.
venue: "Dark Tower State University"        # brief name of host site without address (e.g., "Euphoric State University")
address: "100 Campus Center Dr., Ash Mountain, Mordor 666666"      # street address of workshop (e.g., "123 Forth Street, Blimingen, Euphoria")
country: "Middle-Earth"      # country (lowercase two-letter ISO code such as "fr" - see https://en.wikipedia.org/wiki/ISO_3166-1)
language: "Orc"     # language (lowercase two-letter ISO code such as "fr" - see https://en.wikipedia.org/wiki/ISO_639-1)
latlng: "39.2,175.5833"       # fractional latitude and longitude (e.g., "41.7901128,-87.6007318"; you can use http://www.latlong.net/)
humandate: "June 06-07, 2016"    # human-readable date (e.g., "Feb 17-18, 2020")
humantime: "10pm-6am"    # human-readable time (e.g., "9:00 am - 4:30 pm")
startdate:  2016-06-06     # use YYYY-MM-DD format like 2015-01-01
enddate: 2016-06-07        # use YYYY-MM-DD format like 2015-01-02
instructor: ["Sauron","Sauramon"] # list of names like ["Kay McNulty", "Betty Jennings", "Betty Snyder"]
helper: ["Witch-king of Angmar", "Khamul the Easterling"]     # list of names like ["Marlyn Wescoff", "Fran Bilas", "Ruth Lichterman"]
contact: "dark_lord@tinder.com"      # contact email address for workshop organizer, such as "grace@hopper.org"
etherpad:         # optional (insert the URL for your Etherpad if you're using one)
eventbrite:       # optional (insert the alphanumeric key for Eventbrite registration, e.g., "1234567890AB")
---
<!--
  HEADER

  Edit the values in the block above to be appropriate for your workshop.
  If the value is not 'true', 'false', 'null', or a number, please use
  double quotation marks around the value, unless specified otherwise.
  And run 'tools/check' *before* committing to make sure that changes are good.
-->

<!--
  EVENTBRITE

  This block includes the Eventbrite registration widget if
  'eventbrite' has been set in the header.  You can delete it if you
  are not using Eventbrite, or leave it in, since it will not be
  displayed if the 'eventbrite' field in the header is not set.
-->
{% if page.eventbrite %}
<iframe
  src="https://www.eventbrite.com/tickets-external?eid={{page.eventbrite}}&ref=etckt"
  frameborder="0"
  width="100%"
  height="248px"
  scrolling="auto">
</iframe>
{% endif %}

<h2 id="general">General Information</h2>

<!--
  INTRODUCTION

  Edit the general explanatory paragraph below if you want to change
  the pitch.
-->
<p>
  <a href="{{site.swc_site}}">Software Carpentry</a>'s mission
  is to help scientists, engineers, orcs, goblins, and trolls
  get more research done in less time and with less pain by teaching 
  them basic lab skills for scientific computing.  This hands-on workshop 
  will cover basic concepts and tools, including program design, version 
  control, data management, and task automation.  Participants will be 
  encouraged to help one another and to apply what they have learned to 
  their own research problems and finding the One Ring.
</p>
<p align="center">
  <em>
    For more information on what we teach and why,
    please see our paper
    "<a href="http://journals.plos.org/plosbiology/article?id=10.1371/journal.pbio.1001745">Best Practices for Scientific Computing</a>".
  </em>
</p>

<!--
  AUDIENCE

  Explain who your audience is.  (In particular, tell readers if the
  workshop is only open to people from a particular institution.
-->
<p id="who">
  <strong>Who:</strong>
  The course is aimed at graduate students, other researchers and anyone serving the Dark Lord.
  <strong>You don't need to have any previous knowledge of the tools that will
    be presented at the workshop.</strong>
</p>

<!--
  LOCATION

  This block displays the address and links to maps showing directions
  if the latitude and longitude of the workshop have been set.  You
  can use http://itouchmap.com/latlong.html to find the lat/long of an
  address.
-->
{% if page.latlng %}
<p id="where">
  <strong>Where:</strong>
  {{page.address}}.
  Get directions with
  <a href="//www.openstreetmap.org/?mlat={{page.latlng | replace:',','&mlon='}}&zoom=16">OpenStreetMap</a>
  or
  <a href="//maps.google.com/maps?q={{page.latlng}}">Google Maps</a>.
</p>
{% endif %}

<!--
  SPECIAL REQUIREMENTS

  Modify the block below if there are any special requirements.
-->
<p id="requirements">
  <strong>Requirements:</strong> Participants must bring a laptop with
  a few specific software packages installed (listed
  <a href="#setup">below</a>). They are also required to abide by
  Software Carpentry's
  <a href="{{site.swc_site}}/conduct.html">Code of Conduct</a>.
</p>

<!--
  CONTACT EMAIL ADDRESS

  Display the contact email address set in the header.  If an address
  isn't set in the header, the Software Carpentry admin address is
  used.
-->
<p id="contact">
  <strong>Contact</strong>:
  Please mail
  {% if page.contact %}
    <a href='mailto:{{page.contact}}'>{{page.contact}}</a>
  {% else %}
    <a href='mailto:{{site.contact}}'>{{site.contact}}</a>
  {% endif %}
  for more information.
</p>

<hr/>

<!--
  SCHEDULE

  Show the workshop's schedule.  Edit the items and times in the table
  to match your plans.  You may also want to change 'Day 1' and 'Day
  2' to be actual dates or days of the week.
-->
<h2 id="schedule">Schedule</h2>

<!-- DO NOT EDIT SURVEY LINKS -->
<p><em>Surveys</em></p>
<p>Please be sure to complete these surveys before and after the workshop.</p>
<p><a href='{{ site.swc_pre_survey }}{{ site.github.project_title }}'>Pre-workshop Survey</a></p>
<p><a href='{{ site.swc_post_survey }}{{ site.github.project_title }}'>Post-workshop Survey</a></p>

<div class="row">
  <div class="col-md-6">
    <h3>Day 1</h3>
    <table class="table table-striped">
      <tr> <td>09:00</td>  <td>Automating tasks with the Unix shell</td> </tr>
      <tr> <td>10:30</td> <td>Coffee</td> </tr>
      <tr> <td>12:00</td>  <td>Lunch break</td> </tr>
      <tr> <td>13:00</td>  <td>Building programs with Python</td> </tr>
      <tr> <td>14:30</td>  <td>Coffee</td> </tr>
      <tr> <td>16:00</td>  <td>Wrap-up</td> </tr>
    </table>
  </div>
  <div class="col-md-6">
    <h3>Day 2</h3>
    <table class="table table-striped">
      <tr> <td>09:00</td>  <td>Version control with Git</td> </tr>
      <tr> <td>10:30</td>  <td>Coffee</td> </tr>
      <tr> <td>12:00</td>  <td>Lunch break</td> </tr>
      <tr> <td>13:00</td>  <td>Managing data with SQL</td> </tr>
      <tr> <td>14:30</td>  <td>Coffee</td> </tr>
      <tr> <td>16:00</td>  <td>Wrap-up</td> </tr>
    </table>
  </div>
</div>

<!--
  ETHERPAD

  At `_misc/etherpad.txt` you will find a template for the etherpad.

  Display the Etherpad for the workshop.  You can set this up in
  advance or on the first day; either way, make sure you push changes
  to GitHub after you have its URL.  To create an Etherpad, go to

      http://pad.software-carpentry.org/YYYY-MM-DD-site

  where 'YYYY-MM-DD-site' is the identifier for your workshop,
  e.g., '2015-06-10-esu'.
-->
{% if page.etherpad %}
<p id="etherpad">
  <strong>Etherpad:</strong> <a href="{{page.etherpad}}">{{page.etherpad}}</a>.
  <br/>
  We will use this Etherpad for chatting, taking notes, and sharing URLs and bits of code.
</p>
{% endif %}

<hr/>

<!--
  SYLLABUS

  Show what topics will be covered.

  1. If your workshop is R rather than Python, remove the comment
     around that section and put a comment around the Python section.
  2. Some workshops will delete SQL.
  3. Please make sure the list of topics is synchronized with what you
     intend to teach.
  4. You may need to move the div's with class="col-md-6" around inside
     the div's with class="row" to balance the multi-column layout.

  This is one of the places where people frequently make mistakes, so
  please preview your site before committing, and make sure to run
  'tools/check' as well.
-->
<h2 id="syllabus">Syllabus</h2>

<div class="row">
  <div class="col-md-6">
    <h3 id="syllabus-shell">The Unix Shell</h3>
    <ul>
      <li>Files and directories</li>
      <li>History and tab completion</li>
      <li>Pipes and redirection</li>
      <li>Looping over files</li>
      <li>Creating and running shell scripts</li>
      <li>Finding things</li>
      <li><a href="{{site.swc_githubio}}/shell-novice/reference.html">Reference...</a></li>
    </ul>
  </div>
  <div class="col-md-6">
    <h3 id="syllabus-python">Programming in Python</h3>
    <ul>
      <li>Using libraries</li>
      <li>Working with arrays</li>
      <li>Reading and plotting data</li>
      <li>Creating and using functions</li>
      <li>Loops and conditionals</li>
      <li>Defensive programming</li>
      <li>Using Python from the command line</li>
      <li><a href="{{site.swc_githubio}}/python-novice-inflammation/reference.html">Reference...</a></li>
    </ul>
  </div>
  <!--
  <div class="col-md-6">
    <h3 id="syllabus-r">Programming in R</h3>
    <ul>
      <li>Working with vectors and data frames</li>
      <li>Reading and plotting data</li>
      <li>Creating and using functions</li>
      <li>Loops and conditionals</li>
      <li>Using R from the command line</li>
      <li><a href="{{site.swc_githubio}}/r-novice-inflammation/reference.html">Reference...</a></li>
    </ul>
  </div>
  -->
  <!--
  <div class="col-md-6">
    <h3 id="syllabus-matlab">Programming in MATLAB</h3>
    <ul>
      <li>Working with arrays</li>
      <li>Reading and plotting data</li>
      <li>Creating and using functions</li>
      <li>Loops and conditionals</li>
      <li>Defensive programming</li>
      <li><a href="{{site.swc_githubio}}/matlab-novice-inflammation/reference.html">Reference...</a></li>
     </ul>
   </div>
   -->
</div>

<div class="row">
  <div class="col-md-6">
    <h3 id="syllabus-git">Version Control with Git</h3>
    <ul>
      <li>Creating a repository</li>
      <li>Recording changes to files: <code>add</code>, <code>commit</code>, ...</li>
      <li>Viewing changes: <code>status</code>, <code>diff</code>, ...</li>
      <li>Ignoring files</li>
      <li>Working on the web: <code>clone</code>, <code>pull</code>, <code>push</code>, ...</li>
      <li>Resolving conflicts</li>
      <li>Open licenses</li>
      <li>Where to host work, and why</li>
      <li><a href="{{site.swc_githubio}}/git-novice/reference.html">Reference...</a></li>
    </ul>
  </div>
  <div class="col-md-6">
    <h3 id="syllabus-sql">Managing Data with SQL</h3>
    <ul>
      <li>Reading and sorting data</li>
      <li>Filtering with <code>where</code></li>
      <li>Calculating new values on the fly</li>
      <li>Handling missing values</li>
      <li>Combining values using aggregation</li>
      <li>Combining information from multiple tables using <code>join</code></li>
      <li>Creating, modifying, and deleting data</li>
      <li>Programming with databases</li>
      <li><a href="{{site.swc_githubio}}/sql-novice-survey/reference.html">Reference...</a></li>
    </ul>
  </div>
</div>

<hr/>

<!--
  SETUP

  Delete irrelevant sections from the setup instructions.  Each
  section is inside a 'div' without any classes to make the beginning
  and end easier to find.

  This is the other place where people frequently make mistakes, so
  please preview your site before committing, and make sure to run
  'tools/check' as well.
-->

<h2 id="setup">Setup</h2>

<p>
  To participate in a Software Carpentry workshop, you will need
  access to the software described below. In addition, you will
  need an up-to-date web browser.
</p>
<p>
  We maintain a list of common issues that occur during installation as a reference for instructors
  that may be useful on the
  <a href = "https://github.com/swcarpentry/workshop-template/wiki/Configuration-Problems-and-Solutions">Configuration Problems and Solutions wiki page</a>.
</p>

<div id="shell"> <!-- Start of 'shell' section. -->
  <h3>The Bash Shell</h3>

  <p>
    Bash is a commonly-used shell that gives you the power to do simple
    tasks more quickly.
  </p>

  <div class="row">
    <div class="col-md-4">
      <h4 id="shell-windows">Windows</h4>
      <ol>
        <li>Download the Git for Windows <a href="https://git-for-windows.github.io/">installer</a>.</li>
        <li>Run the installer and follow the steps bellow:
          <ol>
            <!-- Git 2.6.1 Setup -->
            <!-- Welcome to the Git Setup Wizard -->
            <li>Click on "Next".</li>
            <!-- Information -->
            <li>Click on "Next".</li>
            <!-- Select Destination Location -->
            <li>Click on "Next".</li>
            <!-- Select Components -->
            <li>Click on "Next".</li>
            <!-- Select Start Menu Folder -->
            <li>Click on "Next".</li>
            <!-- Adjusting your PATH environment -->
            <li>
              <strong>
                Select "Use Git from the Windows Command Prompt" and click on "Next".
              </strong>
                If you forgot to do this programs that you need for the workshop will not work properly.
                If this happens rerun the installer and select the appropriate option.
            </li>
            <!-- Configuring the line ending conversions -->
            <li>
              Click on "Next".
              <strong>
                Keep "Checkout Windows-style, commit Unix-style line endings" selected.
              </strong>
            </li>
            <!-- Configuring the terminal emulator to use with Git Bash -->
            <li>
              <strong>
                Select "Use Windows' default console window" and click on "Next".
              </strong>
            </li>
            <!-- Configuring experimental performance tweaks -->
            <li>Click on "Next".</li>
            <!-- Installing -->
            <!-- Completing the Git Setup Wizard -->
            <li>Click on "Finish".</li>
          </ol>
        </li>
      </ol>
      <p>This will provide you with both Git and Bash in the Git Bash program.</p>
    </div>
    <div class="col-md-4">
      <h4 id="shell-macosx">Mac OS X</h4>
      <p>
        The default shell in all versions of Mac OS X is Bash, so no
        need to install anything.  You access Bash from the Terminal
        (found in
        <code>/Applications/Utilities</code>). You may want to keep
        Terminal in your dock for this workshop.
      </p>
    </div>
    <div class="col-md-4">
      <h4 id="shell-linux">Linux</h4>
      <p>
        The default shell is usually Bash, but if your
        machine is set up differently you can run it by opening a
        terminal and typing <code>bash</code>.  There is no need to
        install anything.
      </p>
    </div>
  </div>
</div> <!-- End of 'shell' section. -->

<div id='git'> <!-- Start of 'Git' section. GitHub browser compatability
           is given at https://help.github.com/articles/supported-browsers/-->
  <h3>Git</h3>

  <p>
    Git is a version control system that lets you track who made changes
    to what when and has options for easily updating a shared or public
    version of your code
    on <a href="https://github.com/">github.com</a>. You will need a
    <a href="https://help.github.com/articles/supported-browsers/">supported</a>
    web browser (current versions of Chrome, Firefox or Safari,
    or Internet Explorer version 9 or above).
  </p>

  <div class="row">
    <div class="col-md-4">
      <h4 id="git-windows">Windows</h4>
      <p>
        Git should be installed on your computer as part of your Bash
        install (described above).
      </p>
    </div>
    <div class="col-md-4">
      <h4 id="git-macosx">Mac OS X</h4>
      <p>
        <strong>For OS X 10.9 and higher</strong>, install Git for Mac
        by downloading and running the most recent "mavericks" installer from
        <a href="http://sourceforge.net/projects/git-osx-installer/files/">this list</a>.
        After installing Git, there will not be anything in your <code>/Applications</code> folder,
        as Git is a command line program.
        <strong>For older versions of OS X (10.5-10.8)</strong> use the
        most recent available installer labelled "snow-leopard"
        <a href="http://sourceforge.net/projects/git-osx-installer/files/">available here</a>.
      </p>
    </div>
    <div class="col-md-4">
      <h4 id="git-linux">Linux</h4>
      <p>
        If Git is not already available on your machine you can try to
        install it via your distro's package manager. For Debian/Ubuntu run
        <code>sudo apt-get install git</code> and for Fedora run
        <code>sudo yum install git</code>.
      </p>
    </div>
  </div>
</div> <!-- End of 'Git' section. -->

<div id="editor"> <!-- Start of 'editor' section. -->
  <h3>Text Editor</h3>

  <p>
    When you're writing code, it's nice to have a text editor that is
    optimized for writing code, with features like automatic
    color-coding of key words.  The default text editor on Mac OS X and
    Linux is usually set to Vim, which is not famous for being
    intuitive.  if you accidentally find yourself stuck in it, try
    typing the escape key, followed by <code>:q!</code> (colon, lower-case 'q',
    exclamation mark), then hitting Return to return to the shell.
  </p>

  <div class="row">
    <div class="col-md-4">
      <h4 id="editor-windows">Windows</h4>
      <p>
        nano is a basic editor and the default that instructors use in the workshop.
        To install it,
        download the <a href="{{site.swc_installer}}">Software Carpentry Windows installer</a>
        and double click on the file to run it.
        <strong>This installer requires an active internet connection.</strong>
      </p>
      <p>
        Others editors that you can use are
        <a href="http://notepad-plus-plus.org/">Notepad++</a> or
        <a href="http://www.sublimetext.com/">Sublime Text</a>.
        <strong>Be aware that you must
          add its installation directory to your system path.</strong>
        Please ask your instructor to help you do this.
      </p>
    </div>
    <div class="col-md-4">
      <h4 id="editor-macosx">Mac OS X</h4>
      <p>
        nano is a basic editor and the default that instructors use in the workshop.
        It should be pre-installed.
      </p>
      <p>
        Others editors that you can use are
        <a href="http://www.barebones.com/products/textwrangler/">Text Wrangler</a> or
        <a href="http://www.sublimetext.com/">Sublime Text</a>.
      </p>
    </div>
    <div class="col-md-4">
      <h4 id="editor-linux">Linux</h4>
      <p>
        nano is a basic editor and the default that instructors use in the workshop.
        It should be pre-installed.
      </p>
      <p>
        Others editors that you can use are
        <a href="https://wiki.gnome.org/Apps/Gedit">Gedit</a>,
        <a href="http://kate-editor.org/">Kate</a> or
        <a href="http://www.sublimetext.com/">Sublime Text</a>.
      </p>
    </div>
  </div>
</div> <!-- End of 'editor' section. -->

<div id="python"> <!-- Start of 'Python' section. Remove the third paragraph if
           the workshop will teach Python using something other than
           the IPython notebook.
           Details at http://ipython.org/ipython-doc/2/install/install.html#browser-compatibility -->
  <h3>Python</h3>

  <p>
    <a href="http://python.org">Python</a> is a popular language for
    scientific computing, and great for general-purpose programming as
    well.  Installing all of its scientific packages individually can be
    a bit difficult, so we recommend
    <a href="https://www.continuum.io/anaconda">Anaconda</a>,
    an all-in-one installer.
  </p>

    <p>
      Regardless of how you choose to install it,
      <strong>please make sure you install Python version 3.x</strong>
      (e.g., 3.4 is fine).
    </p>

    <p>
      We will teach Python using the IPython notebook, a programming environment
      that runs in a web browser. For this to work you will need a reasonably
      up-to-date browser. The current versions of the Chrome, Safari and
      Firefox browsers are all <a
      href='http://ipython.org/ipython-doc/2/install/install.html#browser-compatibility'>supported</a>
      (some older browsers, including Internet Explorer version 9
      and below, are not).
    </p>

  <div class="row">
    <div class="col-md-4">
      <h4 id="python-windows">Windows</h4>
      <ol>
        <li>Open <a href="http://continuum.io/downloads">http://continuum.io/downloads</a> with your web browser.</li>
        <li>Download the Python 3 installer for Windows.</li>
        <li>Install Python 3 using all of the defaults for installation <em>except</em> make sure to check <strong>Make Anaconda the default Python</strong>.</li>
      </ol>
    </div>
    <div class="col-md-4">
      <h4 id="python-macosx">Mac OS X</h4>
      <ol>
        <li>Open <a href="http://continuum.io/downloads">http://continuum.io/downloads</a> with your web browser.</li>
        <li>Download the Python 3 installer for OS X.</li>
        <li>Install Python 3 using all of the defaults for installation.</li>
      </ol>
    </div>
    <div class="col-md-4">
      <h4 id="python-linux">Linux</h4>
      </p>
      <ol>
        <li>Open <a href="http://continuum.io/downloads">http://continuum.io/downloads</a> with your web browser.</li>
        <li>Download the Python 3 installer for Linux.</li>
        <li>Install Python 3 using all of the defaults for installation.
        (Installation requires using the shell. If you aren't
        comfortable doing the installation yourself
        stop here and request help at the workshop.)</li>
        <li>
          Open a terminal window.
        </li>
        <li>
          Type <pre>bash Anaconda-</pre> and then press
          tab. The name of the file you just downloaded should
          appear.
        </li>
        <li>
          Press enter. You will follow the text-only prompts.  When
          there is a colon at the bottom of the screen press the down
          arrow to move down through the text. Type <code>yes</code> and
          press enter to approve the license. Press enter to approve the
          default location for the files. Type <code>yes</code> and
          press enter to prepend Anaconda to your <code>PATH</code>
          (this makes the Anaconda distribution the default Python).
        </li>
      </ol>
    </div>
  </div>
<!--
  <p>
  Once you are done installing the software listed above,
  please go to <a href="setup/index.html">this page</a>,
  which has instructions on how to test that everything was installed correctly.
  </p>
-->
</div> <!-- End of 'Python' section. -->

<div id="r"> <!-- Start of 'R' section. -->
  <h3>R</h3>

  <p>
    <a href="http://www.r-project.org">R</a> is a programming language
    that is especially powerful for data exploration, visualization, and
    statistical analysis. To interact with R, we use
    <a href="http://www.rstudio.com/">RStudio</a>.
  </p>

  <div class="row">
    <div class="col-md-4">
      <h4 id="r-windows">Windows</h4>
      <p>
        Install R by downloading and running
        <a href="http://cran.r-project.org/bin/windows/base/release.htm">this .exe file</a>
        from <a href="http://cran.r-project.org/index.html">CRAN</a>.
        Also, please install the
        <a href="http://www.rstudio.com/ide/download/desktop">RStudio IDE</a>.
      </p>
    </div>
    <div class="col-md-4">
      <h4 id="r-macosx">Mac OS X</h4>
      <p>
        Install R by downloading and running
        <a href="http://cran.r-project.org/bin/macosx/R-latest.pkg">this .pkg file</a>
        from <a href="http://cran.r-project.org/index.html">CRAN</a>.
        Also, please install the
        <a href="http://www.rstudio.com/ide/download/desktop">RStudio IDE</a>.
      </p>
    </div>
    <div class="col-md-4">
      <h4 id="r-linux">Linux</h4>
      <p>
        You can download the binary files for your distribution
        from <a href="http://cran.r-project.org/index.html">CRAN</a>. Or
        you can use your package manager (e.g. for Debian/Ubuntu
        run <code>sudo apt-get install r-base</code> and for Fedora run
        <code>sudo yum install R</code>).  Also, please install the
        <a href="http://www.rstudio.com/ide/download/desktop">RStudio IDE</a>.
      </p>
    </div>
  </div>
</div> <!-- End of 'R' section. -->

<div id="sql"> <!-- Start of 'SQLite' section. -->
  <h3>SQLite</h3>

  <p>
    SQL is a specialized programming language used with databases.  We
    use a simple database manager called
    <a href="http://www.sqlite.org/">SQLite</a> in our lessons.
  </p>

  <div class="row">
    <div class="col-md-4">
      <h4 id="sql-windows">Windows</h4>
      <p>
        The <a href="{{site.swc_github}}/windows-installer">Software Carpentry Windows Installer</a>
        installs SQLite for Windows.
        If you used the installer to configure nano, you don't need to run it again.
      </p>
    </div>
    <div class="col-md-4">
      <h4 id="sql-macosx">Mac OS X</h4>
      <p>
        SQLite comes pre-installed on Mac OS X.
      </p>
    </div>
    <div class="col-md-4">
      <h4 id="sql-linux">Linux</h4>
      <p>
        SQLite comes pre-installed on Linux.
      </p>
    </div>
  </div>

  <p><strong>If you installed Anaconda, it also has a copy of SQLite
    <a href="https://github.com/ContinuumIO/anaconda-issues/issues/307">without support to <code>readline</code></a>.
    Instructors will provide a workaround for it if needed.</strong></p>
</div> <!-- End of 'SQLite' section. -->

<!--
  Uncomment this section if you are using our virtual machine.

<div id="vm">
  <h3>Virtual Machine</h3>

  <p>
    Some instructors prefer to have learners use a virtual machine (VM)
    rather than install software on their own computers.  If your
    instructors have chosen to do this, please:
  </p>
  <ol>
    <li>
      Install <a href="https://www.virtualbox.org/">VirtualBox</a>.
    </li>
    <li>
      Download our <a href="{{site.swc_vm}}">VM image</a>.
      <strong>Warning:</strong> this file is 1.7 GByte, so please
      download it <em>before</em> coming to your workshop.
    </li>
    <li>
      Load the VM into VirtualBox by selecting "Import Appliance" and
      loading the <code>.ova</code> file.
    </li>
  </ol>
</div>
-->