Collected some non-standard extensions for sh(1).

1 files changed, 14 insertions, 1 deletions

diff --git a/doc/portability-book/files/utilities.xml b/doc/portability-book/files/utilities.xml
index ff704437157..43e411a69c6 100644
--- a/doc/portability-book/files/utilities.xml
+++ b/doc/portability-book/files/utilities.xml
@@ -1,4 +1,4 @@
-<!-- $NetBSD: utilities.xml,v 1.2 2006/10/06 22:18:33 rillig Exp $ -->
+<!-- $NetBSD: utilities.xml,v 1.3 2006/10/07 08:13:21 rillig Exp $ -->
 
 <chapter id="utilities">
 <title>Command line utilities</title>
@@ -10,6 +10,19 @@ utilities</ulink> on the platforms.</para>
 <sect1 id="util.sh">
 <title>sh</title>
 
+<sect2 id="util.sh.ext">
+<title>Non-standard extensions</title>
+
+<para>The variable <varname>RANDOM</varname> is an addition of
+<filename>ksh</filename>, and <filename>bash</filename> can do it as
+well.</para>
+
+<para>The command <command>[[</command> is an addition of
+<filename>ksh</filename>, and <filename>bash</filename> can do it as
+well.</para>
+
+</sect2>
+
 <sect2 id="util.sh.netbsd">
 <title>NetBSD</title>