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authorBruce Dubbs <bdubbs@linuxfromscratch.org>2020-06-16 11:56:28 +0000
committerBruce Dubbs <bdubbs@linuxfromscratch.org>2020-06-16 11:56:28 +0000
commit675606bde2ba53946537b42a5aa576692a311621 (patch)
treeaf20c20ce3841c16b24d0b9903af6878a4a0f5a6 /chapter08/bash.xml
parent560065f976e371779928dbf8b9428217f3f57331 (diff)
parent1cd59612d00603c9ce773ad821a15d20bc4fa0b7 (diff)
Split Chapter 5 into three separate chapters.
Implement a new method of cross-building the LFS tool chain and other tools to simplify the method of isolating the new system from the original host. This will be the start of LFS-10.0. Move old trunk/BOOK to branches/old-trunk. git-svn-id: http://svn.linuxfromscratch.org/LFS/trunk/BOOK@11946 4aa44e1e-78dd-0310-a6d2-fbcd4c07a689
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+<?xml version="1.0" encoding="ISO-8859-1"?>
+<!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
+ "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
+ <!ENTITY % general-entities SYSTEM "../general.ent">
+ %general-entities;
+]>
+
+<sect1 id="ch-system-bash" role="wrap">
+ <?dbhtml filename="bash.html"?>
+
+ <sect1info condition="script">
+ <productname>bash</productname>
+ <productnumber>&bash-version;</productnumber>
+ <address>&bash-url;</address>
+ </sect1info>
+
+ <title>Bash-&bash-version;</title>
+
+ <indexterm zone="ch-system-bash">
+ <primary sortas="a-Bash">Bash</primary>
+ </indexterm>
+
+ <sect2 role="package">
+ <title/>
+
+ <para>The Bash package contains the Bourne-Again SHell.</para>
+
+ <segmentedlist>
+ <segtitle>&buildtime;</segtitle>
+ <segtitle>&diskspace;</segtitle>
+
+ <seglistitem>
+ <seg>&bash-fin-sbu;</seg>
+ <seg>&bash-fin-du;</seg>
+ </seglistitem>
+ </segmentedlist>
+
+ </sect2>
+
+ <sect2 role="installation">
+ <title>Installation of Bash</title>
+
+ <para>Incorporate some upstream fixes:</para>
+
+<screen><userinput remap="pre">patch -Np1 -i ../&bash-fixes-patch;</userinput></screen>
+
+ <para>Prepare Bash for compilation:</para>
+
+<screen><userinput remap="configure">./configure --prefix=/usr \
+ --docdir=/usr/share/doc/bash-&bash-version; \
+ --without-bash-malloc \
+ --with-installed-readline</userinput></screen>
+
+ <variablelist>
+ <title>The meaning of the new configure option:</title>
+
+ <varlistentry>
+ <term><parameter>--with-installed-readline</parameter></term>
+ <listitem>
+ <para>This option tells Bash to use the <filename
+ class="libraryfile">readline</filename> library that is already
+ installed on the system rather than using its own readline
+ version.</para>
+ </listitem>
+ </varlistentry>
+
+ </variablelist>
+
+ <para>Compile the package:</para>
+
+<screen><userinput remap="make">make</userinput></screen>
+
+ <para>Skip down to <quote>Install the
+ package</quote> if not running the test suite.</para>
+
+ <para>To prepare the tests, ensure that the <systemitem class="username">tester</systemitem> user can write to the sources tree:</para>
+
+<screen><userinput remap="test">chown -Rv tester .</userinput></screen>
+
+ <para>Now, run the tests as the <systemitem
+ class="username">tester</systemitem> user:</para>
+
+<screen><userinput remap="test">su tester &lt;&lt; EOF
+PATH=$PATH make tests &lt; $(tty)
+EOF</userinput></screen>
+
+ <para>Install the package and move the main executable to
+ <filename class='directory'>/bin</filename>:</para>
+
+<screen><userinput remap="install">make install
+mv -vf /usr/bin/bash /bin</userinput></screen>
+
+ <para>Run the newly compiled <command>bash</command> program (replacing the one that is
+ currently being executed):</para>
+
+<screen role="nodump"><userinput>exec /bin/bash --login +h</userinput></screen>
+
+ <note>
+ <para>The parameters used make the <command>bash</command>
+ process an interactive login shell and continues to disable hashing so
+ that new programs are found as they become available.</para>
+ </note>
+
+ </sect2>
+
+ <sect2 id="contents-bash" role="content">
+ <title>Contents of Bash</title>
+
+ <segmentedlist>
+ <segtitle>Installed programs</segtitle>
+ <segtitle>Installed directory</segtitle>
+
+ <seglistitem>
+ <seg>bash, bashbug, and sh (link to bash)</seg>
+ <seg>/usr/include/bash, /usr/lib/bash, and
+ /usr/share/doc/bash-&bash-version;</seg>
+ </seglistitem>
+ </segmentedlist>
+
+ <variablelist>
+ <bridgehead renderas="sect3">Short Descriptions</bridgehead>
+ <?dbfo list-presentation="list"?>
+ <?dbhtml list-presentation="table"?>
+
+ <varlistentry id="bash">
+ <term><command>bash</command></term>
+ <listitem>
+ <para>A widely-used command interpreter; it performs many types of
+ expansions and substitutions on a given command line before executing
+ it, thus making this interpreter a powerful tool</para>
+ <indexterm zone="ch-system-bash bash">
+ <primary sortas="b-bash">bash</primary>
+ </indexterm>
+ </listitem>
+ </varlistentry>
+
+ <varlistentry id="bashbug">
+ <term><command>bashbug</command></term>
+ <listitem>
+ <para>A shell script to help the user compose and mail standard
+ formatted bug reports concerning <command>bash</command></para>
+ <indexterm zone="ch-system-bash bashbug">
+ <primary sortas="b-bashbug">bashbug</primary>
+ </indexterm>
+ </listitem>
+ </varlistentry>
+
+ <varlistentry id="sh">
+ <term><command>sh</command></term>
+ <listitem>
+ <para>A symlink to the <command>bash</command> program; when invoked
+ as <command>sh</command>, <command>bash</command> tries to mimic the
+ startup behavior of historical versions of <command>sh</command> as
+ closely as possible, while conforming to the POSIX standard as
+ well</para>
+ <indexterm zone="ch-system-bash sh">
+ <primary sortas="b-sh">sh</primary>
+ </indexterm>
+ </listitem>
+ </varlistentry>
+
+ </variablelist>
+
+ </sect2>
+
+</sect1>