lfs-book-zh_CN/chapter07/rcS.xml

<sect1 id="ch07-rcS">
<title>Creating the rcS script</title>

<para>The second main boot script is the <filename>rcS</filename> script. 
Create the <filename>/etc/init.d/rcS</filename> script by running the following
command:</para>

<para><screen><userinput>cat &gt; rcS &lt;&lt; "EOF"</userinput>
#!/bin/sh
# Begin /etc/init.d/rcS

#
# See the rc script for the extensive comments on the constructions
# used here
#

runlevel=S
prevlevel=N
umask 022
export runlevel prevlevel

trap ":" INT QUIT TSTP

#
# Collect all the S scripts in /etc/rcS.d and execute them
#

for i in /etc/rcS.d/S*
do
        [ ! -f  "$i" ] &amp;&amp; continue;
                $i start
done

# End /etc/init.d/rcS
<userinput>EOF</userinput></screen></para>

</sect1>