From : http://lucasepe.blogspot.com/2010_05_01_archive.html
Install of Tomcat on Ubuntu
Step One
Locating Java and Tomcat home(s):
luca@ubuntu:~$ find / -name java -type f 2> /dev/null
/usr/lib/jvm/java-6-sun-1.6.0.20/jre/bin/java
luca@ubuntu:~$ find / -name catalina.sh -type f 2> /dev/null
/usr/share/tomcat6/bin/catalina.sh
Step Two
Modify your
/etc/environment file
luca@ubuntu:~$ sudo gedit /etc/environment
adding...
#.Setting JAVA_HOME
if [ -d /usr/lib/jvm/java-6-sun-1.6.0.20 ]; then
export JAVA_HOME=/usr/lib/jvm/java-6-sun-1.6.0.20
export CLASSPATH=.:$JAVA_HOME/lib
fi
#.Setting CATALINA_HOME
if [ -d /usr/share/tomcat6 ]; then
export CATALINA_HOME=/usr/share/tomcat6
fi
Step Three
Log off then log in to force the reload of the file.
Make a simple check:
luca@ubuntu:~$ env | grep CATALINA_HOME
CATALINA_HOME=/usr/share/tomcat6
luca@ubuntu:~$ env | grep JAVA_HOME
JAVA_HOME=/usr/lib/jvm/java-6-sun-1.6.0.20
CLASSPATH=.:$JAVA_HOME/lib#.Setting JAVA_HOME
if [ -d /usr/lib/jvm/java-6-sun-1.6.0.22 ]; then
export JAVA_HOME=/usr/lib/jvm/java-6-sun-1.6.0.2
export CLASSPATH=.:$JAVA_HOME/lib
fi
#.Setting CATALINA_HOME
if [ -d /usr/share/tomcat6 ]; then
export CATALINA_HOME=/usr/share/tomcat6
fi
