erator">=</span> <span class="StringLit">&quot;bar&quot;</span>  <span class="Comment"># that's it, foo -&gt; bar is now on disk</span>
<span class="Identifier">echo</span> <span class="Identifier">db</span><span class="Punctuation">[</span><span class="StringLit">&quot;foo&quot;</span><span class="Punctuation">]</span>     <span class="Comment"># prints bar</span></pre><p>Now if you comment out the write, you can run the program again and read the value off disk</p>
<pre class="listing"><span class="Keywor