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<html xmlns="http://www.w3.org/1999/xhtml"><head><title>root</title><link rel="stylesheet" href="../../jargon.css" type="text/css"/><meta name="generator" content="DocBook XSL Stylesheets V1.61.0"/><link rel="home" href="../index.html" title="The Jargon File"/><link rel="up" href="../R.html" title="R"/><link rel="previous" href="room-temperature-IQ.html" title="room-temperature IQ"/><link rel="next" href="root-mode.html" title="root mode"/></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">root</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="room-temperature-IQ.html">Prev</a> </td><th width="60%" align="center">R</th><td width="20%" align="right"> <a accesskey="n" href="root-mode.html">Next</a></td></tr></table><hr/></div><dt><a id="root"/><dt xmlns="" id="root"><b>root</b>: <span xmlns="http://www.w3.org/1999/xhtml" class="grammar">n.</span></dt></dt><dd><p> 1. [Unix] The <a href="../S/superuser.html"><i class="glossterm">superuser</i></a> account (with user
name &#8216;root&#8217;) that ignores permission bits, user number 0 on a
Unix system. The term <a href="../A/avatar.html"><i class="glossterm">avatar</i></a> is also used. </p></dd><dd><p> 2. The top node of the system directory structure; historically the
home directory of the root user, but probably named after the root of an
(inverted) tree. </p></dd><dd><p> 3. By extension, the privileged system-maintenance login on any OS.
See <a href="root-mode.html"><i class="glossterm">root mode</i></a>, <a href="../G/go-root.html"><i class="glossterm">go root</i></a>, see
also <a href="../W/wheel.html"><i class="glossterm">wheel</i></a>.</p></dd><div class="navfooter"><hr/><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="room-temperature-IQ.html">Prev</a> </td><td width="20%" align="center"><a accesskey="u" href="../R.html">Up</a></td><td width="40%" align="right"> <a accesskey="n" href="root-mode.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top">room-temperature IQ </td><td width="20%" align="center"><a accesskey="h" href="../index.html">Home</a></td><td width="40%" align="right" valign="top"> root mode</td></tr></table></div></body></html>