title: how to "translate" Grep find/replace commands working with TextWrangler by a command line
body: <p>I have some <strong>Grep</strong> find/replace commands working well under <strong>TextWrangler</strong> like the following one:</p>
  
  <p>Find: (\"\d+.\d{3})+(\d{3}+[\s]+)</p>
  
  <p>Replace: \1s</p>
  
  <p>For example,this find/replace will replace:</p>
  
  <p><em>TXTXTXT"123.123456     TXTXTXT</em> 
  by <em>TXTXTXT"123.123sTXTXTXT</em> </p>
  
  <p>Now I want to do the same thing in command line by using egrep but it's not working:</p>
  
  <pre><code>egrep -e 's/(\"\d+\.\d{3})+(\d{3}+[\s]+)/\1s' -f m.txt &gt; n.txt
  </code></pre>
  
  <p>egrep: Regular expression too big</p>
  
  <p>Any idea?
  Thank you in advance.</p>