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<!DOCTYPE HTML PUBLIC "-//Norman Walsh//DTD DocBook HTML 1.0//EN">
<HTML
><HEAD
><TITLE
>Managing user accounts</TITLE
><META
NAME="GENERATOR"
CONTENT="Modular DocBook HTML Stylesheet"><LINK
REL="HOME"
TITLE="The Linux System Administrators' Guide"
HREF="book1.html"><LINK
REL="PREVIOUS"
TITLE="Shell startup"
HREF="x2008.html"><LINK
REL="NEXT"
TITLE="Creating a user"
HREF="x2031.html"></HEAD
><BODY
BGCOLOR="#FFFFFF"
TEXT="#000000"
><DIV
CLASS="NAVHEADER"
><TABLE
WIDTH="100%"
BORDER="0"
CELLPADDING="0"
CELLSPACING="0"
><TR
><TH
COLSPAN="3"
ALIGN="center"
>The Linux System Administrators' Guide</TH
></TR
><TR
><TD
WIDTH="10%"
ALIGN="left"
VALIGN="bottom"
><A
HREF="x2008.html"
>Prev</A
></TD
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>Next</A
></TD
></TR
></TABLE
><HR
ALIGN="LEFT"
WIDTH="100%"></DIV
><DIV
CLASS="CHAPTER"
><H1
><A
NAME="AEN2018"
>Chapter 9. Managing user accounts</A
></H1
><DIV
CLASS="TOC"
><DL
><DT
><B
>Table of Contents</B
></DT
><DT
><A
HREF="c2018.html#AEN2024"
>What's an account?</A
></DT
><DT
><A
HREF="x2031.html"
>Creating a user</A
></DT
><DT
><A
HREF="x2124.html"
>Changing user properties</A
></DT
><DT
><A
HREF="x2152.html"
>Removing a user</A
></DT
><DT
><A
HREF="x2166.html"
>Disabling a user temporarily</A
></DT
></DL
></DIV
><BLOCKQUOTE
><P
>&#8220;The similarities of sysadmins and drug
	dealers: both measure stuff in K's, and both have users.&#8221;
	(Old, tired computer joke.)</P
></BLOCKQUOTE
><P
> This chapter explains how to create new user accounts,
	how to modify the properties of those accounts, and how to remove
	the accounts.  Different Linux systems have different tools for
	doing this.</P
><DIV
CLASS="SECT1"
><H1
CLASS="SECT1"
><A
NAME="AEN2024"
>What's an account?</A
></H1
><P
> When a computer is used by many people it is usually
	necessary to differentiate between the users, for example, so that
	their private files can be kept private.  This is important even
	if the computer can only be used by a single person at a time,
	as with most microcomputers.
	
		<A
NAME="AEN2027"
HREF="#FTN.AEN2027"
>[1]</A
>
		
	Thus, each user is given a unique username, and that name is
	used to log in.  </P
><P
> There's more to a user than just a name, however. An
	<I
CLASS="GLOSSTERM"
>account</I
> is all the files, resources,
	and information belonging to one user. The term hints at banks,
	and in a commercial system each account usually has some money
	attached to it, and that money vanishes at different speeds
	depending on how much the user stresses the system. For example,
	disk space might have a price per megabyte and day, and processing
	time might have a price per second.  </P
></DIV
></DIV
><H3
>Notes</H3
><TABLE
BORDER="0"
CLASS="FOOTNOTES"
WIDTH="100%"
><TR
><TD
ALIGN="LEFT"
VALIGN="TOP"
WIDTH="5%"
><A
NAME="FTN.AEN2027"
HREF="c2018.html#AEN2027"
>[1]</A
></TD
><TD
ALIGN="LEFT"
VALIGN="TOP"
WIDTH="95%"
><P
>It might be quite embarrassing if my
		sister could read my love letters.</P
></TD
></TR
></TABLE
><DIV
CLASS="NAVFOOTER"
><HR
ALIGN="LEFT"
WIDTH="100%"><TABLE
WIDTH="100%"
BORDER="0"
CELLPADDING="0"
CELLSPACING="0"
><TR
><TD
WIDTH="33%"
ALIGN="left"
VALIGN="top"
><A
HREF="x2008.html"
>Prev</A
></TD
><TD
WIDTH="34%"
ALIGN="center"
VALIGN="top"
><A
HREF="book1.html"
>Home</A
></TD
><TD
WIDTH="33%"
ALIGN="right"
VALIGN="top"
><A
HREF="x2031.html"
>Next</A
></TD
></TR
><TR
><TD
WIDTH="33%"
ALIGN="left"
VALIGN="top"
>Shell startup</TD
><TD
WIDTH="34%"
ALIGN="center"
VALIGN="top"
>&nbsp;</TD
><TD
WIDTH="33%"
ALIGN="right"
VALIGN="top"
>Creating a user</TD
></TR
></TABLE
></DIV
></BODY
></HTML
>