s9.html

<div id="reading-writing-to-disk" class="titleslide slide section level1"><h1>Reading &amp; Writing to Disk</h1></div><div id="motivation" class="slide section level2">
<h1>Motivation</h1>
</div><div id="types-of-files" class="slide section level2">
<h1>Types of Files</h1>
<h3 id="sequential">Sequential</h3>
<h3 id="random-access">Random Access</h3>
</div><div id="modifying-files" class="slide section level2">
<h1>Modifying Files</h1>
<p>To modify a give file you must have the appropriate permissions.</p>
<p>r - read w - write a - append</p>
<h3 id="working-with-files">Working with Files</h3>
<p><code>fopen()</code> opens an existing file or creates one if you tell it too &quot;w&quot;</p>
<p><code>fprintf()</code> print data to your file.</p>
<p><code>fclose()</code> close the files and frees up system memory once your finished writing to your file.</p>
</div>