extracting a variable's value from text file using bash
<p>I am using Linux and bash.
I have a simple text file like below:</p>

<pre><code>VAR1=100
VAR2=5
VAR3=0
VAR4=99
</code></pre>

<p>I want to extract by means of bash the value of VAR2, that is 5.</p>

<p>How could I do that?</p>