How to Setup tomcat on ubuntu

First, please setup JAVA on your ubuntu, you can refer to :
https://lengerrong.blogspot.com/2017/03/how-to-config-oracle-java-on-your-ubuntu.html


$ wget http://mirror.apache-kr.org/tomcat/tomcat-9/v9.0.0.M22/bin/apache-tomcat-9.0.0.M22.tar.gz
$ tar xzvf apache-tomcat-9.0.0.M22.tar.gz
$ sudo cp apache-tomcat-9.0.0.M22 /var/lib/tomcat9 -rf
$ cd /var/lib/tomcat9/
$ sudo vim bin/startup.sh
# Better OS/400 detection: see Bugzilla 31132
os400=false
case "`uname`" in
OS400*) os400=true;;
esac

export JAVA_HOME=/usr/lib/jvm/java-8-oracle/
export JRE_HOME=/usr/lib/jvm/java-8-oracle/jre/
export CLASSPATH=$JAVA_HOME/lib:$JRE_HOME/lib:$CLASSPATH
export PATH=$JAVA_HOME/bin:$JRE_HOME/bin:$JAVA_HOME:$PATH
export TOMCAT_HOME=/var/lib/tomcat9



Start tomcat
$ sudo bin/startup.sh