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  18 <!-- This is a (PRE) block.  Make sure it's left aligned or your toc title will be off. --> 
  19 <b>SdiffCommand: Contents
</b><br>  <a href=
"#SDIFF _key1_ _key2_ ... _keyN_">SDIFF _key1_ _key2_ ... _keyN_
</a><br>    <a href=
"#Return value">Return value
</a> 
  22                 <h1 class=
"wikiname">SdiffCommand
</h1> 
  29                     #sidebar 
<a href=
"SetCommandsSidebar.html">SetCommandsSidebar
</a><h1><a name=
"SDIFF _key1_ _key2_ ... _keyN_">SDIFF _key1_ _key2_ ... _keyN_
</a></h1> 
  30 <i>Time complexity O(N) with N being the total number of elements of all the sets
</i><blockquote>Return the members of a set resulting from the difference between the firstset provided and all the successive sets. Example:
</blockquote> 
  31 <pre class=
"codeblock python" name=
"code"> 
  35 SDIFF key1,key2,key3 =
> x,b
 
  36 </pre><blockquote>Non existing keys are considered like empty sets.
</blockquote> 
  37 <h2><a name=
"Return value">Return value
</a></h2><a href=
"ReplyTypes.html">Multi bulk reply
</a>, specifically the list of common elements.