title: sed on Linux vs FreeBSD
body: <p>I have the following code</p>
  
  <pre><code>cat file1 | sed '0,/2014-08-30/d'
  </code></pre>
  
  <p>inside file1, there is</p>
  
  <pre><code>2014-08-30
  2015-03-29 + /homes/eva/xv/xvalen20/aaa
  2015-03-29 + /homes/eva/xv/xvalen20/IZP/blabla
  2015-03-29 + /homes/eva/xv/xvalen20/IZP/wg*d s1a
  2015-03-29 + /homes/eva/xv/xvalen20/IZP/wg*ds1a
  2015-03-29 + /homes/eva/xv/xvalen20/newfile
  2015-03-29 + /homes/eva/xv/xvalen20/wgdsa
  </code></pre>
  
  <p>on Linux machine, the output is the same as file1 except for the first line (that's what I'm aiming for). On FreeBSD machine, output is exactly the same as file1 content. </p>
  
  <p>I have found some sites about difference between the seds, but I can't figure out this one.</p>