title: Combining two text files based the second field in the first text file only when also present in the second text file
body: <p>I have two text files that I would like to somehow combine yet substitute based on the second field in the first file.  Below is the format of the first file.  Which is words with their count from a corpus.</p>
  
  <p>file_1.txt</p>
  
  <pre><code>1000 the
  999 been
  950 phone
  850 ball
  800 watch
  799 porch
  </code></pre>
  
  <p>File 2 is some of the words that can be found in the first file but have a breakdown of that word from the second field on.</p>
  
  <p>file_2.txt</p>
  
  <pre><code>the th e
  been be en
  shirt sh ir t
  phone pho ne
  desk d esk
  chair cha i r
  watch wa t c h
  floor f loo r
  </code></pre>
  
  <p>What I would like to get is below.  When the word(s) are present in both files I like to only have the word break down from the second file.</p>
  
  <p>file_3.txt</p>
  
  <pre><code>1000 th e
  999 be en
  950 pho ne
  850 ball
  800 wa t c h
  799 porch
  </code></pre>
  
  <p>I've been trying to do some <code>sort</code> stuff between the two files based on the fields but I'm pretty lost.</p>