title: sort rows in 'VI' editor
body: <p>If i have to sort following rows on the basis of values on left of '='. But the sorting should expand the selection to column after '=' simultaneously. Thtz is we dnt have to sort column after '=' ::</p>
  
  <pre><code>50599=1000000  
  50454=00000054  
  50080=00005464  
  50098=00000875  
  50661=00000665  
  50788=10000035  
  50988=10000006  
  50994=10000656  
  57009=00000005  
  57022=10000008  
  57040=10000005  
  57000=10000005  
  57060=10000089  
  57067=10005640  
  57102=00000765  
  57190=00000867  
  </code></pre>
  
  <p>This needs to be done in 'VI' editing the file.</p>
  
  <p>RESULT should be ::</p>
  
  <pre><code>50080=00005464    
  50098=00000875  ...etc.
  </code></pre>