title: Running repetitive commands in terminal
body: <p>I am somewhat new to running shell commands.
  Currently I am executing these one at a time in terminal like this:</p>
  
  <pre><code>python dna.py databases/small.csv sequences/1.txt
  // result
  
  python dna.py databases/small.csv sequences/2.txt
  // result
  
  python dna.py databases/small.csv sequences/3.txt
  // result
  
  etc...
  </code></pre>
  
  <p>Is there a way to put all these commands in a <strong><em>text file</em></strong> and run a single command that will execute them all at once?  Lastly, I'd like to pipe this to a results.txt file.</p>