[f8d632ac] | 1 | <?xml version="1.0" encoding="ISO-8859-1"?>
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[ff769b8c] | 2 | <!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.4//EN"
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| 3 | "http://www.oasis-open.org/docbook/xml/4.4/docbookx.dtd" [
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[f8d632ac] | 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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[78b3cd61] | 8 | <sect1 id="postlfs-config-profile" xreflabel="The Bash Shell Startup Files">
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[2753b70b] | 9 | <?dbhtml filename="profile.html"?>
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| 10 |
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| 11 | <sect1info>
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| 12 | <othername>$LastChangedBy$</othername>
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| 13 | <date>$Date$</date>
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| 14 | </sect1info>
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| 15 |
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| 16 | <title>The Bash Shell Startup Files</title>
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| 17 |
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| 18 | <para>The shell program <filename>/bin/bash</filename> (hereafter
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| 19 | referred to as just "the shell") uses a collection of startup files to
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| 20 | help create an environment. Each file has a specific use and
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| 21 | may affect login and interactive environments differently. The files in
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[384039a] | 22 | the <filename class="directory">/etc</filename> directory generally provide
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[2753b70b] | 23 | global settings. If an equivalent file exists in your home directory it may
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| 24 | override the global settings.</para>
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| 25 |
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| 26 | <para>An interactive login shell is started after a successful login, using
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[384039a] | 27 | <filename>/bin/login</filename>, by reading the <filename>/etc/passwd</filename>
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| 28 | file. This shell invocation normally reads <filename>/etc/profile</filename>
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| 29 | and its private equivalent <filename>~/.bash_profile</filename> upon
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[2753b70b] | 30 | startup.</para>
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| 31 |
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| 32 | <para>An interactive non-login shell is normally started at the command-line
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| 33 | (e.g., <prompt>[prompt]$</prompt><command>/bin/bash</command>) or by the
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| 34 | <command>/bin/su</command> command. An interactive non-login shell is also
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| 35 | started with a terminal program such as <command>xterm</command> or
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| 36 | <command>konsole</command> from within a graphical environment. This type of
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| 37 | shell invocation normally copies the parent environment and then reads the
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| 38 | user's <filename>~/.bashrc</filename> file for additional startup configuration
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| 39 | instructions.</para>
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| 40 |
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| 41 | <para>A non-interactive shell is usually present when a shell script is
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| 42 | running. It is non-interactive because it is processing a script and not
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| 43 | waiting for user input between commands. For these shell invocations, only
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| 44 | the environment inherited from the parent shell is used.</para>
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| 45 |
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| 46 | <para> The file <filename>~/.bash_logout</filename> is not used for an
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| 47 | invocation of the shell. It is read and executed when a user exits from an
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| 48 | interactive login shell.</para>
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| 49 |
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[384039a] | 50 | <para>To the standard files, <filename>/etc/bashrc</filename> is called from
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| 51 | the user's <filename>~/.bashrc</filename> for system wide initialization of
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[2753b70b] | 52 | non-login shells.</para>
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| 53 |
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[384039a] | 54 | <para>For more information see <command>info bash</command> --
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[2753b70b] | 55 | <emphasis role="strong">Nodes: Bash Startup Files and Interactive
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| 56 | Shells.</emphasis></para>
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| 57 |
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| 58 | <sect2 id="etc-profile-profile">
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| 59 | <title>/etc/profile</title>
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| 60 |
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| 61 | <indexterm zone="postlfs-config-profile etc-profile-profile">
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| 62 | <primary sortas="e-etc-profile">/etc/profile</primary>
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| 63 | </indexterm>
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| 64 |
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| 65 | <para>Here is a base <filename>/etc/profile</filename>. This file starts by
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| 66 | setting up some helper functions and some basic parameters. It specifies some
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| 67 | <filename>bash</filename> history parameters and, for security purposes,
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[384039a] | 68 | disables keeping a permanent history file for the <systemitem
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[2753b70b] | 69 | class="username">root</systemitem> user. It also sets a
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| 70 | default user prompt. It then calls small, single purpose scripts in the
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| 71 | <filename class='directory'>/etc/profile.d</filename> directory to provide most
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| 72 | initialization. </para>
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| 73 |
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| 74 | <para>For more information on the escape sequences you can use for your prompt
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| 75 | (e.g., the <envar>PS1</envar> environment variable) see <command>info
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| 76 | bash</command> -- <emphasis role="strong">Node: Printing a
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| 77 | Prompt.</emphasis></para>
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| 78 |
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| 79 | <screen role="root"><userinput>cat > /etc/profile << "EOF"
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| 80 | <literal># Begin /etc/profile
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[b554263] | 81 | # Written for Beyond Linux From Scratch
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| 82 | # by James Robertson <jameswrobertson@earthlink.net>
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[1a396398] | 83 | # modifications by Dagmar d'Surreal <rivyqntzne@pbzpnfg.arg>
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[384039a] | 84 |
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[b554263] | 85 | # System wide environment variables and startup programs.
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[384039a] | 86 |
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[b554263] | 87 | # System wide aliases and functions should go in /etc/bashrc. Personal
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| 88 | # environment variables and startup programs should go into
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| 89 | # ~/.bash_profile. Personal aliases and functions should go into
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| 90 | # ~/.bashrc.
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[384039a] | 91 |
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[1a396398] | 92 | # Functions to help us manage paths. Second argument is the name of the
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| 93 | # path variable to be modified (default: PATH)
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| 94 | pathremove () {
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| 95 | local IFS=':'
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| 96 | local NEWPATH
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| 97 | local DIR
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| 98 | local PATHVARIABLE=${2:-PATH}
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| 99 | for DIR in ${!PATHVARIABLE} ; do
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| 100 | if [ "$DIR" != "$1" ] ; then
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| 101 | NEWPATH=${NEWPATH:+$NEWPATH:}$DIR
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| 102 | fi
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| 103 | done
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| 104 | export $PATHVARIABLE="$NEWPATH"
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[b554263] | 105 | }
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[384039a] | 106 |
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[1a396398] | 107 | pathprepend () {
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| 108 | pathremove $1 $2
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| 109 | local PATHVARIABLE=${2:-PATH}
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| 110 | export $PATHVARIABLE="$1${!PATHVARIABLE:+:${!PATHVARIABLE}}"
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| 111 | }
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[384039a] | 112 |
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[1a396398] | 113 | pathappend () {
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| 114 | pathremove $1 $2
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| 115 | local PATHVARIABLE=${2:-PATH}
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| 116 | export $PATHVARIABLE="${!PATHVARIABLE:+${!PATHVARIABLE}:}$1"
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| 117 | }
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[384039a] | 118 |
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[e9ef7b5e] | 119 |
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| 120 | # Set the initial path
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| 121 | export PATH=/bin:/usr/bin
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| 122 |
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[1a396398] | 123 | if [ $EUID -eq 0 ] ; then
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[e9ef7b5e] | 124 | pathappend /sbin:/usr/sbin
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[1a396398] | 125 | unset HISTFILE
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[b554263] | 126 | fi
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[384039a] | 127 |
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[1a396398] | 128 | # Setup some environment variables.
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| 129 | export HISTSIZE=1000
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| 130 | export HISTIGNORE="&:[bf]g:exit"
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| 131 | #export PS1="[\u@\h \w]\\$ "
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| 132 | export PS1='\u@\h:\w\$ '
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[384039a] | 133 |
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[1a396398] | 134 | for script in /etc/profile.d/*.sh ; do
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[d3880c0] | 135 | if [ -r $script ] ; then
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[1a396398] | 136 | . $script
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| 137 | fi
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| 138 | done
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[384039a] | 139 |
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[99e8a229] | 140 | # Now to clean up
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[384039a] | 141 | unset pathremove pathprepend pathappend
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[1a396398] | 142 |
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[2753b70b] | 143 | # End /etc/profile</literal>
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| 144 | EOF</userinput></screen>
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[1a396398] | 145 |
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[2753b70b] | 146 | <sect3 id="etc-profile.d">
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| 147 | <title>The /etc/profile.d Directory</title>
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[99e8a229] | 148 |
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[2753b70b] | 149 | <indexterm zone="postlfs-config-profile etc-profile.d">
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| 150 | <primary sortas="e-etc-profile.d">/etc/profile.d</primary>
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| 151 | </indexterm>
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[1a396398] | 152 |
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[384039a] | 153 | <para>Now create the <filename class='directory'>/etc/profile.d</filename>
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[2753b70b] | 154 | directory, where the individual initialization scripts are placed.</para>
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[1a396398] | 155 |
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[2753b70b] | 156 | <screen role="root"><userinput>install --directory --mode=0755 --owner=root --group=root /etc/profile.d</userinput></screen>
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[1a396398] | 157 |
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[2753b70b] | 158 | </sect3>
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[1a396398] | 159 |
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[2753b70b] | 160 | <sect3 id="etc-profile.d-dircolors.sh">
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| 161 | <title>/etc/profile.d/dircolors.sh</title>
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| 162 |
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| 163 | <indexterm zone="postlfs-config-profile etc-profile.d-dircolors.sh">
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| 164 | <primary sortas="e-etc-profile.d-dircolors.sh">/etc/profile.d/dircolors.sh</primary>
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| 165 | </indexterm>
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| 166 |
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| 167 | <para>This script uses the <filename>~/.dircolors</filename> and
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| 168 | <filename>/etc/dircolors</filename> files to control the colors of file names in a
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| 169 | directory listing. They control colorized output of things like <command>ls
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| 170 | --color</command>. The explaination of how to initialize these files is at the
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| 171 | end of this section.</para>
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| 172 |
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| 173 | <screen role="root"><userinput>cat > /etc/profile.d/dircolors.sh << "EOF"
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| 174 | <literal># Setup for /bin/ls to support color, the alias is in /etc/bashrc.
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[1a396398] | 175 | if [ -f "/etc/dircolors" ] ; then
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| 176 | eval $(dircolors -b /etc/dircolors)
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[384039a] | 177 |
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[1a396398] | 178 | if [ -f "$HOME/.dircolors" ] ; then
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| 179 | eval $(dircolors -b $HOME/.dircolors)
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| 180 | fi
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[b554263] | 181 | fi
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[2753b70b] | 182 | alias ls='ls --color=auto'</literal>
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| 183 | EOF</userinput></screen>
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| 184 |
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| 185 | </sect3>
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| 186 |
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| 187 | <sect3 id="extrapaths.sh">
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| 188 | <title>/etc/profile.d/extrapaths.sh</title>
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| 189 |
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| 190 | <indexterm zone="postlfs-config-profile extrapaths.sh">
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| 191 | <primary sortas="e-etc-profile.d-extrapaths.sh">/etc/profile.d/extrapaths.sh</primary>
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| 192 | </indexterm>
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| 193 |
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| 194 | <para>This script adds several useful paths to the <envar>PATH</envar> and
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[384039a] | 195 | <envar>PKG_CONFIG_PATH</envar> environment variables. If you want, you
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| 196 | can uncomment the last section to put a dot at the end of your path. This will
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| 197 | allow executables in the current working directory to be executed without
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| 198 | specifiying a ./, however you are warned that this is generally considered a
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[2753b70b] | 199 | security hazard.</para>
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[384039a] | 200 |
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[2753b70b] | 201 | <screen role="root"><userinput>cat > /etc/profile.d/extrapaths.sh << "EOF"
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| 202 | <literal>if [ -d /usr/local/lib/pkgconfig ] ; then
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[1a396398] | 203 | pathappend /usr/local/lib/pkgconfig PKG_CONFIG_PATH
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| 204 | fi
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| 205 | if [ -d /usr/local/bin ]; then
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| 206 | pathprepend /usr/local/bin
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[b554263] | 207 | fi
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[1a396398] | 208 | if [ -d /usr/local/sbin -a $EUID -eq 0 ]; then
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| 209 | pathprepend /usr/local/sbin
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| 210 | fi
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[d3880c0] | 211 | for directory in $(find /opt/*/lib/pkgconfig -type d 2>/dev/null); do
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[1a396398] | 212 | pathappend $directory PKG_CONFIG_PATH
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| 213 | done
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[d3880c0] | 214 | for directory in $(find /opt/*/bin -type d 2>/dev/null); do
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[1a396398] | 215 | pathappend $directory
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| 216 | done
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| 217 | if [ -d ~/bin ]; then
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| 218 | pathprepend ~/bin
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| 219 | fi
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| 220 | #if [ $EUID -gt 99 ]; then
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| 221 | # pathappend .
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[2753b70b] | 222 | #fi</literal>
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| 223 | EOF</userinput></screen>
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| 224 |
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| 225 | </sect3>
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| 226 |
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| 227 | <sect3 id="readline.sh">
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| 228 | <title>/etc/profile.d/readline.sh</title>
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| 229 |
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| 230 | <indexterm zone="postlfs-config-profile readline.sh">
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| 231 | <primary sortas="e-etc-profile.d-readline.sh">/etc/profile.d/readline.sh</primary>
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| 232 | </indexterm>
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| 233 |
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[384039a] | 234 | <para>This script sets up the default <filename>inputrc</filename>
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| 235 | configuration file. If the user does not have individual settings, it uses the
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[2753b70b] | 236 | global file.</para>
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| 237 |
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| 238 | <screen role="root"><userinput>cat > /etc/profile.d/readline.sh << "EOF"
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| 239 | <literal># Setup the INPUTRC environment variable.
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[b554263] | 240 | if [ -z "$INPUTRC" -a ! -f "$HOME/.inputrc" ] ; then
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[1a396398] | 241 | INPUTRC=/etc/inputrc
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[b554263] | 242 | fi
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[2753b70b] | 243 | export INPUTRC</literal>
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| 244 | EOF</userinput></screen>
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| 245 |
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| 246 | </sect3>
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| 247 |
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| 248 | <sect3 id="tinker-term.sh">
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| 249 | <title>/etc/profile.d/tinker-term.sh</title>
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| 250 |
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| 251 | <indexterm zone="postlfs-config-profile tinker-term.sh">
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| 252 | <primary sortas="e-etc-profile.d-tinker-term.sh">/etc/profile.d/tinker-term.sh</primary>
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| 253 | </indexterm>
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| 254 |
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[384039a] | 255 | <para>Some applications need a specific <envar>TERM</envar> setting to
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[2753b70b] | 256 | support color.</para>
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| 257 |
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| 258 | <screen role="root"><userinput>cat > /etc/profile.d/tinker-term.sh << "EOF"
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[384039a] | 259 | <literal># This will tinker with the value of TERM in order to convince certain
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[dd362e5] | 260 | # apps that we can, indeed, display color in their window.
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[384039a] | 261 |
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[1a396398] | 262 | if [ -n "$COLORTERM" ]; then
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| 263 | export TERM=xterm-color
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| 264 | fi
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[384039a] | 265 |
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[1a396398] | 266 | if [ "$TERM" = "xterm" ]; then
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| 267 | export TERM=xterm-color
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[2753b70b] | 268 | fi</literal>
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| 269 | EOF</userinput></screen>
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| 270 |
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| 271 | </sect3>
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| 272 |
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| 273 | <sect3 id="umask.sh">
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| 274 | <title>/etc/profile.d/umask.sh</title>
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| 275 |
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| 276 | <indexterm zone="postlfs-config-profile umask.sh">
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| 277 | <primary sortas="e-etc-profile.d-umask.sh">/etc/profile.d/umask.sh</primary>
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| 278 | </indexterm>
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[384039a] | 279 |
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| 280 | <para>Setting the <command>umask</command> value is important for security.
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| 281 | Here the default group write permissions are turned off for system users and when
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[2753b70b] | 282 | the user name and group name are not the same.</para>
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[b554263] | 283 |
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[2753b70b] | 284 | <screen role="root"><userinput>cat > /etc/profile.d/umask.sh << "EOF"
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| 285 | <literal># By default we want the umask to get set.
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[1a396398] | 286 | if [ "$(id -gn)" = "$(id -un)" -a $EUID -gt 99 ] ; then
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| 287 | umask 002
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| 288 | else
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| 289 | umask 022
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[2753b70b] | 290 | fi</literal>
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| 291 | EOF</userinput></screen>
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| 292 |
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| 293 | </sect3>
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| 294 |
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| 295 | <sect3 id="X.sh">
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| 296 | <title>/etc/profile.d/X.sh</title>
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[1a396398] | 297 |
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[2753b70b] | 298 | <indexterm zone="postlfs-config-profile X.sh">
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| 299 | <primary sortas="e-etc-profile.d-X.sh">/etc/profile.d/X.sh</primary>
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| 300 | </indexterm>
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[1a396398] | 301 |
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[384039a] | 302 | <para>If <application>X</application> is installed, the <envar>PATH</envar>
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[2753b70b] | 303 | and <envar>PKG_CONFIG_PATH</envar> variables are also updated.</para>
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[1a396398] | 304 |
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[2753b70b] | 305 | <screen role="root"><userinput>cat > /etc/profile.d/X.sh << "EOF"
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| 306 | <literal>if [ -x /usr/X11R6/bin/X ]; then
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[1a396398] | 307 | pathappend /usr/X11R6/bin
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| 308 | fi
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| 309 | if [ -d /usr/X11R6/lib/pkgconfig ] ; then
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| 310 | pathappend /usr/X11R6/lib/pkgconfig PKG_CONFIG_PATH
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[2753b70b] | 311 | fi</literal>
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| 312 | EOF</userinput></screen>
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| 313 |
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| 314 | </sect3>
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| 315 |
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[683e848a] | 316 | <sect3 id="extra-prompt.sh">
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| 317 | <title>/etc/profile.d/extra-prompt.sh</title>
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[2753b70b] | 318 |
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[683e848a] | 319 | <indexterm zone="postlfs-config-profile extra-prompt.sh">
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| 320 | <primary sortas="e-etc-profile.d-prompt.sh">/etc/profile.d/extra-prompt.sh</primary>
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[2753b70b] | 321 | </indexterm>
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| 322 |
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[683e848a] | 323 | <para>This script shows an example of a different way of setting the
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| 324 | prompt. The normal variable, <envar>PS1</envar>, is supplemented by
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[384039a] | 325 | <envar>PROMPT_COMMAND</envar>. If set, the value of
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[683e848a] | 326 | <envar>PROMPT_COMMAND</envar> is executed as a command prior to issuing
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| 327 | each primary prompt. The sequence \e is an ESC character. \a is a
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| 328 | BEL character. For a reference on xterm escape sequences, see <ulink
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| 329 | url="http://rtfm.etla.org/xterm/ctlseq.html"/></para>
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| 330 |
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| 331 | <screen role="root"><userinput>cat > /etc/profile.d/extra-prompt.sh << "EOF"
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| 332 | <literal>PROMPT_COMMAND="echo -ne '\e[1m${USER}@${HOSTNAME} : ${PWD}\e[0m\a'"
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| 333 | export PROMPT_COMMAND</literal>
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[2753b70b] | 334 | EOF</userinput></screen>
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| 335 |
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[683e848a] | 336 | <para>The escape sequences above are BOLD, NORMAL, and BEL.</para>
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| 337 |
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[2753b70b] | 338 | </sect3>
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| 339 |
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| 340 | <sect3 id="i18n.sh">
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[384039a] | 341 | <title>'/etc/profile.d/i18n.sh'</title>
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[2753b70b] | 342 |
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| 343 | <indexterm zone="postlfs-config-profile i18n.sh">
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| 344 | <primary sortas="e-etc-profile.d-i18n.sh">/etc/profile.d/i18n.sh</primary>
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| 345 | </indexterm>
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| 346 |
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[384039a] | 347 | <para>This script shows how to set some environment variables necessary for
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| 348 | native language support. Setting these variables properly gives you:</para>
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[2753b70b] | 349 |
|
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| 350 | <itemizedlist>
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| 351 | <listitem>
|
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| 352 | <para>the output of programs translated into your native language</para>
|
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| 353 | </listitem>
|
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| 354 | <listitem>
|
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[384039a] | 355 | <para>correct classification of characters into letters, digits and
|
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| 356 | other classes – this is necessary for <application>Bash</application>
|
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[2753b70b] | 357 | to accept keystrokes properly in non-English locales</para>
|
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| 358 | </listitem>
|
---|
| 359 | <listitem>
|
---|
| 360 | <para>the alphabetical sorting order correct for your country</para>
|
---|
| 361 | </listitem>
|
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| 362 | <listitem>
|
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| 363 | <para>proper default paper size</para>
|
---|
| 364 | </listitem>
|
---|
| 365 | <listitem>
|
---|
| 366 | <para>correct formatting of monetary, time and date values</para>
|
---|
| 367 | </listitem>
|
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| 368 | </itemizedlist>
|
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| 369 |
|
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[384039a] | 370 | <para>Replace <replaceable>[ll]</replaceable> with the two-letter code for
|
---|
| 371 | your language (e.g., <quote>en</quote>) and
|
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| 372 | <replaceable>[CC]</replaceable> with the two-letter code for your country
|
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| 373 | (e.g., <quote>GB</quote>). Also you may need to specify (and this is actually
|
---|
| 374 | the preferred form) your character encoding (e.g., <quote>iso8859-1</quote>)
|
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| 375 | after a dot (so that the result is <quote>en_GB.iso8859-1</quote>). Issue the
|
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[2753b70b] | 376 | following command for more information:</para>
|
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| 377 |
|
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| 378 | <screen><userinput>man 3 setlocale</userinput></screen>
|
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| 379 |
|
---|
[384039a] | 380 | <para>The list of all locales supported by <application>Glibc</application>
|
---|
[2753b70b] | 381 | can be obtained by running the following command:</para>
|
---|
| 382 |
|
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[384039a] | 383 | <screen><userinput>locale -a</userinput></screen>
|
---|
| 384 |
|
---|
| 385 | <para>After you are sure about your locale settings, create the
|
---|
| 386 | <filename>/etc/profile.d/i18n.sh</filename> file:</para>
|
---|
[2753b70b] | 387 |
|
---|
| 388 | <screen role="root"><userinput>cat > /etc/profile.d/i18n.sh << "EOF"
|
---|
| 389 | <literal># Set up i18n variables
|
---|
[d295e92] | 390 | export LC_ALL=<replaceable>[ll]</replaceable>_<replaceable>[CC]</replaceable>
|
---|
| 391 | export LANG=<replaceable>[ll]</replaceable>_<replaceable>[CC]</replaceable>
|
---|
[2753b70b] | 392 | export G_FILENAME_ENCODING=@locale</literal>
|
---|
| 393 | EOF</userinput></screen>
|
---|
| 394 |
|
---|
[384039a] | 395 | <para>The <envar>LC_ALL</envar> variable sets the same value for all locale
|
---|
| 396 | categories. For better control, you may prefer to set values individually for
|
---|
| 397 | all categories listed in the output of the <command>locale</command>
|
---|
[2753b70b] | 398 | command.</para>
|
---|
| 399 |
|
---|
| 400 | <para>The <envar>G_FILENAME_ENCODING</envar> variable tells applications
|
---|
[384039a] | 401 | such as <application>Glib</application> and <application>GTK+</application>
|
---|
[2753b70b] | 402 | that filenames are in the default locale encoding and not in UTF-8 as
|
---|
| 403 | assumed by default.</para>
|
---|
| 404 |
|
---|
| 405 | </sect3>
|
---|
| 406 |
|
---|
| 407 | <sect3>
|
---|
| 408 | <title>Other Initialization Values</title>
|
---|
| 409 |
|
---|
[384039a] | 410 | <para>Other initialization can easily be added to the
|
---|
| 411 | <filename>profile</filename> by adding additional scripts to the
|
---|
[2753b70b] | 412 | <filename class='directory'>/etc/profile.d</filename> directory.</para>
|
---|
| 413 |
|
---|
| 414 | </sect3>
|
---|
| 415 |
|
---|
| 416 | </sect2>
|
---|
| 417 |
|
---|
| 418 | <sect2 id="etc-bashrc-profile">
|
---|
| 419 | <title>/etc/bashrc</title>
|
---|
| 420 |
|
---|
| 421 | <indexterm zone="postlfs-config-profile etc-bashrc-profile">
|
---|
| 422 | <primary sortas="e-etc-bashrc">/etc/bashrc</primary>
|
---|
| 423 | </indexterm>
|
---|
| 424 |
|
---|
| 425 | <para>Here is a base <filename>/etc/bashrc</filename>. Comments in the
|
---|
| 426 | file should explain everything you need.</para>
|
---|
| 427 |
|
---|
| 428 | <screen role="root"><userinput>cat > /etc/bashrc << "EOF"
|
---|
[384039a] | 429 | <literal># Begin /etc/bashrc
|
---|
| 430 | # Written for Beyond Linux From Scratch
|
---|
[b554263] | 431 | # by James Robertson <jameswrobertson@earthlink.net>
|
---|
[ad33bab6] | 432 | # updated by Bruce Dubbs <bdubbs@linuxfromscratch.org>
|
---|
| 433 |
|
---|
| 434 | # Make sure that the terminal is set up properly for each shell
|
---|
| 435 |
|
---|
| 436 | if [ -f /etc/profile.d/tinker-term.sh ]; then
|
---|
| 437 | source /etc/profile.d/tinker-term.sh
|
---|
| 438 | fi
|
---|
| 439 |
|
---|
[b554263] | 440 | # System wide aliases and functions.
|
---|
| 441 |
|
---|
| 442 | # System wide environment variables and startup programs should go into
|
---|
| 443 | # /etc/profile. Personal environment variables and startup programs
|
---|
| 444 | # should go into ~/.bash_profile. Personal aliases and functions should
|
---|
| 445 | # go into ~/.bashrc
|
---|
| 446 |
|
---|
| 447 | # Provides a colored /bin/ls command. Used in conjunction with code in
|
---|
| 448 | # /etc/profile.
|
---|
[1a396398] | 449 |
|
---|
[b554263] | 450 | alias ls='ls --color=auto'
|
---|
| 451 |
|
---|
[1a396398] | 452 | # Provides prompt for non-login shells, specifically shells started
|
---|
[2753b70b] | 453 | # in the X environment. [Review the LFS archive thread titled
|
---|
[384039a] | 454 | # PS1 Environment Variable for a great case study behind this script
|
---|
[dd362e5] | 455 | # addendum.]
|
---|
[1a396398] | 456 |
|
---|
[3383489] | 457 | #export PS1="[\u@\h \w]\\$ "
|
---|
| 458 | export PS1='\u@\h:\w\$ '
|
---|
[28a9992] | 459 |
|
---|
[2753b70b] | 460 | # End /etc/bashrc</literal>
|
---|
| 461 | EOF</userinput></screen>
|
---|
| 462 |
|
---|
| 463 | </sect2>
|
---|
| 464 |
|
---|
| 465 | <sect2 id="bash_profile-profile">
|
---|
| 466 | <title>~/.bash_profile</title>
|
---|
| 467 |
|
---|
| 468 | <indexterm zone="postlfs-config-profile bash_profile-profile">
|
---|
| 469 | <primary sortas="e-AA.bash_profile">~/.bash_profile</primary>
|
---|
| 470 | </indexterm>
|
---|
| 471 |
|
---|
| 472 | <para>Here is a base <filename>~/.bash_profile</filename>. If you want each
|
---|
| 473 | new user to have this file automatically, just change the output of
|
---|
| 474 | the command to <filename>/etc/skel/.bash_profile</filename> and check the
|
---|
| 475 | permissions after the command is run. You can then copy
|
---|
| 476 | <filename>/etc/skel/.bash_profile</filename> to the home directories of already
|
---|
[384039a] | 477 | existing users, including <systemitem class="username">root</systemitem>,
|
---|
[2753b70b] | 478 | and set the owner and group appropriately.</para>
|
---|
| 479 |
|
---|
| 480 | <screen><userinput>cat > ~/.bash_profile << "EOF"
|
---|
| 481 | <literal># Begin ~/.bash_profile
|
---|
[b554263] | 482 | # Written for Beyond Linux From Scratch
|
---|
| 483 | # by James Robertson <jameswrobertson@earthlink.net>
|
---|
[1a396398] | 484 | # updated by Bruce Dubbs <bdubbs@linuxfromscratch.org>
|
---|
[b554263] | 485 |
|
---|
[64d97b7c] | 486 | # Personal environment variables and startup programs.
|
---|
[b554263] | 487 |
|
---|
| 488 | # Personal aliases and functions should go in ~/.bashrc. System wide
|
---|
| 489 | # environment variables and startup programs are in /etc/profile.
|
---|
| 490 | # System wide aliases and functions are in /etc/bashrc.
|
---|
| 491 |
|
---|
[1a396398] | 492 | append () {
|
---|
| 493 | # First remove the directory
|
---|
| 494 | local IFS=':'
|
---|
| 495 | local NEWPATH
|
---|
| 496 | for DIR in $PATH; do
|
---|
| 497 | if [ "$DIR" != "$1" ]; then
|
---|
[3f1b51a] | 498 | NEWPATH=${NEWPATH:+$NEWPATH:}$DIR
|
---|
[384039a] | 499 | fi
|
---|
[1a396398] | 500 | done
|
---|
[384039a] | 501 |
|
---|
[1a396398] | 502 | # Then append the directory
|
---|
| 503 | export PATH=$NEWPATH:$1
|
---|
| 504 | }
|
---|
| 505 |
|
---|
[b554263] | 506 | if [ -f "$HOME/.bashrc" ] ; then
|
---|
[7008de1] | 507 | source $HOME/.bashrc
|
---|
[b554263] | 508 | fi
|
---|
| 509 |
|
---|
| 510 | if [ -d "$HOME/bin" ] ; then
|
---|
[384039a] | 511 | append $HOME/bin
|
---|
[b554263] | 512 | fi
|
---|
| 513 |
|
---|
[1a396398] | 514 | unset append
|
---|
[b554263] | 515 |
|
---|
[2753b70b] | 516 | # End ~/.bash_profile</literal>
|
---|
| 517 | EOF</userinput></screen>
|
---|
| 518 |
|
---|
| 519 | </sect2>
|
---|
[384039a] | 520 |
|
---|
[2753b70b] | 521 | <sect2 id="bashrc-profile">
|
---|
| 522 | <title>~/.bashrc</title>
|
---|
| 523 |
|
---|
| 524 | <indexterm zone="postlfs-config-profile bashrc-profile">
|
---|
| 525 | <primary sortas="e-AA.bashrc">~/.bashrc</primary>
|
---|
| 526 | </indexterm>
|
---|
| 527 |
|
---|
| 528 | <para>Here is a base <filename>~/.bashrc</filename>. The comments and
|
---|
| 529 | instructions for using <filename class="directory">/etc/skel</filename> for
|
---|
| 530 | <filename>.bash_profile</filename> above also apply here. Only the target file
|
---|
| 531 | names are different.</para>
|
---|
| 532 |
|
---|
| 533 | <screen><userinput>cat > ~/.bashrc << "EOF"
|
---|
| 534 | <literal># Begin ~/.bashrc
|
---|
[b554263] | 535 | # Written for Beyond Linux From Scratch
|
---|
| 536 | # by James Robertson <jameswrobertson@earthlink.net>
|
---|
| 537 |
|
---|
| 538 | # Personal aliases and functions.
|
---|
| 539 |
|
---|
| 540 | # Personal environment variables and startup programs should go in
|
---|
[64d97b7c] | 541 | # ~/.bash_profile. System wide environment variables and startup
|
---|
[b554263] | 542 | # programs are in /etc/profile. System wide aliases and functions are
|
---|
[384039a] | 543 | # in /etc/bashrc.
|
---|
[b554263] | 544 |
|
---|
| 545 | if [ -f "/etc/bashrc" ] ; then
|
---|
[7008de1] | 546 | source /etc/bashrc
|
---|
[b554263] | 547 | fi
|
---|
| 548 |
|
---|
[2753b70b] | 549 | # End ~/.bashrc</literal>
|
---|
| 550 | EOF</userinput></screen>
|
---|
| 551 |
|
---|
| 552 | </sect2>
|
---|
[384039a] | 553 |
|
---|
| 554 |
|
---|
[2753b70b] | 555 | <sect2 id="bash_logout-profile">
|
---|
| 556 | <title>~/.bash_logout</title>
|
---|
| 557 |
|
---|
| 558 | <indexterm zone="postlfs-config-profile bash_logout-profile">
|
---|
| 559 | <primary sortas="e-AA.bash_logout">~/.bash_logout</primary>
|
---|
| 560 | </indexterm>
|
---|
| 561 |
|
---|
| 562 | <para>This is an empty <filename>~/.bash_logout</filename> that can be used as
|
---|
| 563 | a template. You will notice that the base <filename>~/.bash_logout</filename>
|
---|
| 564 | does not include a <userinput>clear</userinput> command. This is because the
|
---|
| 565 | clear is handled in the <filename>/etc/issue</filename> file.</para>
|
---|
| 566 |
|
---|
| 567 | <screen><userinput>cat > ~/.bash_logout << "EOF"
|
---|
| 568 | <literal># Begin ~/.bash_logout
|
---|
[b554263] | 569 | # Written for Beyond Linux From Scratch
|
---|
| 570 | # by James Robertson <jameswrobertson@earthlink.net>
|
---|
| 571 |
|
---|
| 572 | # Personal items to perform on logout.
|
---|
| 573 |
|
---|
[2753b70b] | 574 | # End ~/.bash_logout</literal>
|
---|
| 575 | EOF</userinput></screen>
|
---|
| 576 |
|
---|
| 577 | </sect2>
|
---|
[384039a] | 578 |
|
---|
| 579 |
|
---|
[2753b70b] | 580 | <sect2 id="etc-dircolors-profile">
|
---|
| 581 | <title>/etc/dircolors</title>
|
---|
| 582 |
|
---|
| 583 | <indexterm zone="postlfs-config-profile etc-dircolors-profile">
|
---|
| 584 | <primary sortas="e-etc-dircolors">/etc/dircolors</primary>
|
---|
| 585 | </indexterm>
|
---|
| 586 |
|
---|
| 587 | <indexterm zone="postlfs-config-profile etc-dircolors-profile">
|
---|
| 588 | <primary sortas="e-AA.dircolors">~/.dircolors</primary>
|
---|
| 589 | </indexterm>
|
---|
| 590 |
|
---|
| 591 | <para> If you want to use the <filename>dircolors</filename> capability, then
|
---|
| 592 | run the following command. The <filename class="directory">/etc/skel</filename>
|
---|
| 593 | setup steps seen above also can be used here to provide a
|
---|
[384039a] | 594 | <filename>~/.dircolors</filename> file when a new user is set up. As before,
|
---|
[2753b70b] | 595 | just change the output file name on the following command and assure the
|
---|
[384039a] | 596 | permissions, owner, and group are correct on the files created and/or
|
---|
[2753b70b] | 597 | copied.</para>
|
---|
| 598 |
|
---|
| 599 | <screen role="root"><userinput>dircolors -p > /etc/dircolors</userinput></screen>
|
---|
| 600 |
|
---|
| 601 | <para>If you wish to customize the colors used for different file types, you can
|
---|
[384039a] | 602 | edit the <filename>/etc/dircolors</filename> file. The instructions for setting
|
---|
[2753b70b] | 603 | the colors are embedded in the file.</para>
|
---|
| 604 |
|
---|
| 605 |
|
---|
| 606 | <para>Finally, Ian Macdonald has written an excellent collection of tips and
|
---|
| 607 | tricks to enhance your shell environment. You can read it online at
|
---|
| 608 | <ulink url="http://www.caliban.org/bash/index.shtml">
|
---|
| 609 | http://www.caliban.org/bash/index.shtml</ulink>.</para>
|
---|
| 610 |
|
---|
| 611 | </sect2>
|
---|
| 612 |
|
---|
[b554263] | 613 | </sect1>
|
---|