<li>Plain text formats</li>
<li>Naming files</li>
<li>Regular expressions</li>
- <li><a href="http://data-lessons.github.io/library-data-intro/reference/">Reference...</a></li>
+ <li><a href="https://data-lessons.github.io/library-data-intro/reference/">Reference...</a></li>
</ul>
</div>
<div class="col-md-6">
<li>Counting and sorting contents in files</li>
<li>Pipes and redirection</li>
<li>Mining or searching in files</li>
- <li><a href="http://data-lessons.github.io/library-shell/reference/">Reference...</a></li>
+ <li><a href="https://data-lessons.github.io/library-shell/reference/">Reference...</a></li>
</ul>
</div>
<li>Viewing state changes with <code>status</code></li>
<li>Working on the web: <code>clone</code>, <code>pull</code>, <code>push</code>, ...</li>
<li>Where to host work, and why</li>
- <li><a href="http://data-lessons.github.io/library-git/reference">Reference...</a></li>
+ <li><a href="https://data-lessons.github.io/library-git/reference">Reference...</a></li>
</ul>
</div>
<div class="col-md-6">
<li>Importing data</li>
<li>Basic functions</li>
<li>Advanced Functions</li>
- <li><a href="http://data-lessons.github.io/library-openrefine/reference">Reference...</a></li>
+ <li><a href="https://data-lessons.github.io/library-openrefine/reference">Reference...</a></li>
</ul>
</div>
</div>
<li>Filtering with <code>where</code></li>
<li>Combining values using aggregation</li>
<li>Combining information from multiple tables using <code>join</code></li>
- <li><a href="http://data-lessons.github.io//library-sql/reference/">Reference...</a></li>
+ <li><a href="https://data-lessons.github.io//library-sql/reference/">Reference...</a></li>
</ul>
</div>
</div>