<?xml version="1.0"?> <!DOCTYPE book PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN" "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd"> <refsect1> <title>Environment</title> <variablelist class='environment-variables'> <varlistentry id='pager'> <term><varname>$SYSTEMD_PAGER</varname></term> <listitem><para>Pager to use when <option>--no-pager</option> is not given; overrides <varname>$PAGER</varname>. If neither <varname>$SYSTEMD_PAGER</varname> nor <varname>$PAGER</varname> are set, a set of well-known pager implementations are tried in turn, including <citerefentry><refentrytitle>less</refentrytitle><manvolnum>1</manvolnum></citerefentry> and <citerefentry><refentrytitle>more</refentrytitle><manvolnum>1</manvolnum></citerefentry>, until one is found. If no pager implementation is discovered no pager is invoked. Setting this environment variable to an empty string or the value <literal>cat</literal> is equivalent to passing <option>--no-pager</option>.</para></listitem> </varlistentry> <varlistentry id='less'> <term><varname>$SYSTEMD_LESS</varname></term> <listitem><para>Override the options passed to <command>less</command> (by default <literal>FRSXMK</literal>).</para></listitem> </varlistentry> <varlistentry id='lesscharset'> <term><varname>$SYSTEMD_LESSCHARSET</varname></term> <listitem><para>Override the charset passed to <command>less</command> (by default <literal>utf-8</literal>, if the invoking terminal is determined to be UTF-8 compatible).</para></listitem> </varlistentry> </variablelist> </refsect1>