[root@data bin]# sudo -u tomcat /usr/local/apache-tomcat-6.0.14/bin/catalina.sh stop
Neither the JAVA_HOME nor the JRE_HOME environment variable is defined
At least one of these environment variable is needed to run this program
[root@data bin]# su tomcat
[tomcat@data bin]$ /usr/local/apache-tomcat-6.0.14/bin/catalina.sh stop
Using CATALINA_BASE: /usr/local/apache-tomcat-6.0.14
Using CATALINA_HOME: /usr/local/apache-tomcat-6.0.14
Using CATALINA_TMPDIR: /usr/local/apache-tomcat-6.0.14/temp
Using JRE_HOME: /usr/local/jdk1.6.0_10/jre
[tomcat@data bin]$ /usr/local/apache-tomcat-6.0.14/bin/catalina.sh start
Using CATALINA_BASE: /usr/local/apache-tomcat-6.0.14
Using CATALINA_HOME: /usr/local/apache-tomcat-6.0.14
Using CATALINA_TMPDIR: /usr/local/apache-tomcat-6.0.14/temp
Using JRE_HOME: /usr/local/jdk1.6.0_10/jre