title: How do I find the value of $CATALINA_HOME?
body: <p>I have to copy <code>Connnector/J</code> JAR in <code>$CATALINA_HOME/lib</code>  of Tomcat7 on <code>Amazon EC2</code>. How to find the full path of <code>$CATALINA_HOME/lib</code> on Amazon Linux in Amazon EC2?</p>