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man: describe $LESS options more fully 

https://bugzilla.redhat.com/show_bug.cgi?id=1655316
This commit is contained in:
Zbigniew Jędrzejewski-Szmek 2019-07-21 12:32:17 +02:00 committed by Lennart Poettering
parent a505166845
commit 03909b1e23
1 changed files with 30 additions and 5 deletions
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35
man/less-variables.xml
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@ -25,11 +25,36 @@
<listitem><para>Override the options passed to <command>less</command> (by default
<literal>FRSXMK</literal>).</para>
<para>If the value of <varname>$SYSTEMD_LESS</varname> does not include <literal>K</literal>,
and the pager that is invoked is <command>less</command>,
<keycombo><keycap>Ctrl</keycap><keycap>C</keycap></keycombo> will be ignored by the
executable. This allows <command>less</command> to handle
<keycombo><keycap>Ctrl</keycap><keycap>C</keycap></keycombo> itself.</para></listitem>
<para>Users might want to change two options in particular:</para>
<variablelist class='environment-variables'>
<varlistentry>
<term><option>K</option></term>
<para>This option instructs the pager to exit immediately when
<keycombo><keycap>Ctrl</keycap><keycap>C</keycap></keycombo> is pressed. To allow
<command>less</command> to handle <keycombo><keycap>Ctrl</keycap><keycap>C</keycap></keycombo>
itself to switch back to the pager command prompt, unset this option.</para>
<para>If the value of <varname>$SYSTEMD_LESS</varname> does not include <literal>K</literal>,
and the pager that is invoked is <command>less</command>,
<keycombo><keycap>Ctrl</keycap><keycap>C</keycap></keycombo> will be ignored by the
executable, and needs to be handled by the pager.</para>
</varlistentry>
<varlistentry>
<term><option>X</option></term>
<para>This option instructs the pager to not send termcap initialization and deinitialization
strings to the terminal. It is set by default to allow command output to remain visible in the
terminal even after the pager exits. Nevertheless, this prevents some pager functionality from
working, in particular paged output cannot be scrolled with the mouse.</para>
</varlistentry>
</variablelist>
<para>See
<citerefentry project='man-pages'><refentrytitle>less</refentrytitle><manvolnum>1</manvolnum></citerefentry>
for more discussion.</para></listitem>
</varlistentry>
<varlistentry id='lesscharset'>