11.3
11.3-rc1
12.0
12.0-rc1
12.1
12.1-rc1
12.2
12.2-rc1
bdubbs/gcc13
multilib
renodr/libudev-from-systemd
trunk
xry111/arm64
xry111/arm64-12.0
xry111/clfs-ng
xry111/loongarch
xry111/loongarch-12.0
xry111/loongarch-12.1
xry111/loongarch-12.2
xry111/mips64el
xry111/update-glibc
Last change
on this file since 583156ac was 52dcb7d, checked in by Xℹ Ruoyao <xry111@…>, 3 years ago |
remove $Date$ and $LastChangedBy$
They are unsupported by Git.
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1 | <?xml version="1.0" encoding="ISO-8859-1"?>
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2 | <!DOCTYPE part PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
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3 | "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
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4 | <!ENTITY % general-entities SYSTEM "../general.ent">
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5 | %general-entities;
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6 | ]>
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7 |
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8 | <sect1 id="ch-config-shells" xreflabel="Creating the /etc/shells File">
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9 | <?dbhtml filename="etcshells.html"?>
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10 |
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11 | <title>Creating the /etc/shells File</title>
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12 |
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13 | <indexterm zone="ch-config-shells">
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14 | <primary sortas="e-etc-shells">/etc/shells</primary>
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15 | </indexterm>
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16 |
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17 | <para>The <filename>shells</filename> file contains a list of
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18 | login shells on the system. Applications use this file to determine
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19 | whether a shell is valid. For each shell a single line should be
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20 | present, consisting of the shell's path relative to the root of the
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21 | directory structure (/).</para>
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22 |
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23 | <para>For example, this file is consulted by <command>chsh</command>
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24 | to determine whether an unprivileged user may change the login shell for her
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25 | own account. If the command name is not listed, the user will be denied the
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26 | ability to change shells.</para>
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27 |
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28 | <para>It is a requirement for applications such as
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29 | <application>GDM</application> which does not populate the
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30 | face browser if it can't find <filename>/etc/shells</filename>, or
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31 | FTP daemons which traditionally disallow access to users
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32 | with shells not included in this file.</para>
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33 |
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34 | <screen role="root"><userinput>cat > /etc/shells << "EOF"
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35 | <literal># Begin /etc/shells
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36 |
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37 | /bin/sh
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38 | /bin/bash
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39 |
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40 | # End /etc/shells</literal>
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41 | EOF</userinput></screen>
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42 |
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43 | </sect1>
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