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2<!DOCTYPE sections SYSTEM "/dtd/book.dtd"> 2<!DOCTYPE sections SYSTEM "/dtd/book.dtd">
3 3
4<!-- The content of this document is licensed under the CC-BY-SA license --> 4<!-- The content of this document is licensed under the CC-BY-SA license -->
5<!-- See http://creativecommons.org/licenses/by-sa/2.5 --> 5<!-- See http://creativecommons.org/licenses/by-sa/2.5 -->
6 6
7<!-- $Header: /var/cvsroot/gentoo/xml/htdocs/doc/en/handbook/hb-working-portage.xml,v 1.80 2012/07/24 12:12:52 swift Exp $ --> 7<!-- $Header: /var/cvsroot/gentoo/xml/htdocs/doc/en/handbook/hb-working-portage.xml,v 1.81 2012/08/15 07:20:36 swift Exp $ -->
8 8
9<sections> 9<sections>
10 10
11<abstract> 11<abstract>
12This chapter explains the "simple" steps a user definitely needs to know to 12This chapter explains the "simple" steps a user definitely needs to know to
13maintain the software on his system. 13maintain the software on his system.
14</abstract> 14</abstract>
15 15
16<version>6</version> 16<version>7</version>
17<date>2012-07-24</date> 17<date>2012-08-15</date>
18 18
19<section> 19<section>
20<title>Welcome to Portage</title> 20<title>Welcome to Portage</title>
21<body> 21<body>
22 22
506There are also packages that provide the same functionality but are implemented 506There are also packages that provide the same functionality but are implemented
507differently. For instance, <c>metalogd</c>, <c>sysklogd</c> and <c>syslog-ng</c> 507differently. For instance, <c>metalogd</c>, <c>sysklogd</c> and <c>syslog-ng</c>
508are all system loggers. Applications that rely on the availability of "a system 508are all system loggers. Applications that rely on the availability of "a system
509logger" cannot depend on, for instance, <c>metalogd</c>, as the other system 509logger" cannot depend on, for instance, <c>metalogd</c>, as the other system
510loggers are as good a choice as any. Portage allows for <e>virtuals</e>: each 510loggers are as good a choice as any. Portage allows for <e>virtuals</e>: each
511system logger is listed as a provider of the logging service in the 511system logger is listed as an "exclusive" dependency of the logging service in the
512<c>logger</c> virtual package of the <c>virtual</c> category, so that 512<c>logger</c> virtual package of the <c>virtual</c> category, so that
513applications can depend on the <c>virtual/logger</c> package. 513applications can depend on the <c>virtual/logger</c> package. When installed,
514the package will pull in the first logging package mentioned in the package,
515unless a logging package was already installed (in which case the virtual is
516satisfied).
514</p> 517</p>
515 518
516<p> 519<p>
517Software in the Portage tree can reside in different branches. By default your 520Software in the Portage tree can reside in different branches. By default your
518system only accepts packages that Gentoo deems stable. Most new software titles, 521system only accepts packages that Gentoo deems stable. Most new software titles,

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