From 98a7e017127eb9726f3234aefe0bee59aa0a1b32 Mon Sep 17 00:00:00 2001
From: markt <markt@13f79535-47bb-0310-9956-ffa450edef68>
Date: Fri, 11 Dec 2009 13:47:10 +0000
Subject: [PATCH] Fix https://issues.apache.org/bugzilla/show_bug.cgi?id=47656
 Add information on system property replacement in config files.

git-svn-id: https://svn.apache.org/repos/asf/tomcat/trunk@889615 13f79535-47bb-0310-9956-ffa450edef68
---
 webapps/docs/config/index.xml | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/webapps/docs/config/index.xml b/webapps/docs/config/index.xml
index 3969a77db..83e40a238 100644
--- a/webapps/docs/config/index.xml
+++ b/webapps/docs/config/index.xml
@@ -39,6 +39,14 @@ attempt to describe which configuration directives should be used to perform
 specific tasks - for that, see the various <em>HOW-TO</em> documents on the
 main index page.</p>
 
+<p>The Tomcat configuration files support Apache Ant style variable
+substitution. A system property with the name <code>propname</code> may be
+used in a configuration file using the syntax <code>${propname}</code>. All
+system properties are available including those set using the <code>-D</code>
+syntax, those automatically made available by the JVM and those configured in
+the <code>$CATALINA_BASE/conf/catalina.properties</code> file.
+</p>
+
 <p>The configuration element descriptions are organized into the following
 major categories:</p>
 <ul>
-- 
2.11.0