title: Find all words starting with a fix string in a file?
body: <p>How can I find all the words in my csv file starting with $</p>
  
  <p>My file is like:</p>
  
  <pre><code>Test1,$Var1,$varCab1,$Vargab1,Comment1
  Test2,$Var2,$varCab2,$Vargab2,Comment2
  Test3,$Var3,$varCab3,$Vargab3,Comment3
  </code></pre>
  
  <p>As an output I want </p>
  
  <pre><code>$Var1
  $varCab1
  $Vargab1
  $Var2
  $varCab2
  $Vargab2
  $Var3
  $varCab3
  $Vargab3
  </code></pre>