title: Defining a shell script variable on the same line as sourcing another script
body: <p>I am coming across lines in ksh scripts that declare a variable and source another shell script on the same line. For example:</p>
  
  <pre><code>MYVARIABLE="abc" . ~core/script.sh
  </code></pre>
  
  <p>Does this produce behaviour different from declaring them separately? For example:</p>
  
  <pre><code>MYVARIABLE="abc"
  . ~core/script.sh
  </code></pre>