lfs-book/chapter06/less.xml

<?xml version="1.0" encoding="ISO-8859-1"?>
<!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.4//EN" "http://www.oasis-open.org/docbook/xml/4.4/docbookx.dtd" [
  <!ENTITY % general-entities SYSTEM "../general.ent">
  %general-entities;
]>
<sect1 id="ch-system-less" role="wrap">
<title>Less-&less-version;</title>
<?dbhtml filename="less.html"?>

<indexterm zone="ch-system-less"><primary sortas="a-Less">Less</primary></indexterm>

<sect2 role="package"><title/>
<para>The Less package contains a text file viewer.</para>

<segmentedlist>
<segtitle>&buildtime;</segtitle>
<segtitle>&diskspace;</segtitle>
<seglistitem><seg>0.1 SBU</seg><seg>3.4 MB</seg></seglistitem>
</segmentedlist>

<segmentedlist>
<segtitle>&dependencies;</segtitle>
<seglistitem><seg>Bash, Binutils, Coreutils, Diffutils,
GCC, Glibc, Grep, Make, Ncurses, and Sed</seg></seglistitem>
</segmentedlist>
</sect2>

<sect2 role="installation">
<title>Installation of Less</title>

<para>Prepare Less for compilation:</para>

<screen><userinput>./configure --prefix=/usr --bindir=/bin --sysconfdir=/etc</userinput></screen>

<para>The meaning of the configure option:</para>

<variablelist>
<varlistentry>
<term><parameter>--sysconfdir=/etc</parameter></term>
<listitem><para>This option tells the programs created by the package to look in 
<filename class="directory">/etc</filename> for the configuration files.</para></listitem>
</varlistentry>
</variablelist>

<para>Compile the package:</para>

<screen><userinput>make</userinput></screen>

<para>Install the package:</para>

<screen><userinput>make install</userinput></screen>
</sect2>

<sect2 id="contents-less" role="content"><title>Contents of Less</title>

<segmentedlist>
<segtitle>Installed programs</segtitle>
<seglistitem><seg>less, lessecho, and lesskey</seg></seglistitem>
</segmentedlist>

<variablelist><bridgehead renderas="sect3">Short Descriptions</bridgehead>
<?dbfo list-presentation="list"?>
<?dbhtml list-presentation="table"?>

<varlistentry id="less">
<term><command>less</command></term>
<listitem>
<para>a file viewer or pager; it displays the contents of the given
file, letting the user scroll, find strings, and jump to marks</para>
<indexterm zone="ch-system-less less"><primary sortas="b-less">less</primary></indexterm>
</listitem>
</varlistentry>

<varlistentry id="lessecho">
<term><command>lessecho</command></term>
<listitem>
<para>needed to expand meta-characters, such as <emphasis>*</emphasis>
and <emphasis>?</emphasis>, in filenames on Unix systems</para>
<indexterm zone="ch-system-less lessecho"><primary sortas="b-lessecho">lessecho</primary></indexterm>
</listitem>
</varlistentry>

<varlistentry id="lesskey">
<term><command>lesskey</command></term>
<listitem>
<para>used to specify the key bindings for <command>less</command></para>
<indexterm zone="ch-system-less lesskey"><primary sortas="b-lesskey">lesskey</primary></indexterm>
</listitem>
</varlistentry>
</variablelist>

</sect2>

</sect1>