wget http://www.us.apache.org/dist/tomcat/tomcat-7/v7.0.57/bin/apache-tomcat-7.0.57.tar.gz
tar -xvvf apache-tomcat-7.0.57.tar.gz
mv apache-tomcat-7.0.57 /opt/tomcat
nano /opt/tomcat/conf/tomcat-users.xml
find the <tomcat-users> </tomcat-users> lines and in between add the below entry
<role rolename="manager-gui"/> <role rolename="manager-script"/> <role rolename="manager-jmx"/> <role rolename="manager-status"/> <role rolename="admin-gui"/> <role rolename="admin-script"/> <user username="admin" password="admin" roles="manager-gui,manager-script,manager-jmx,manager-status,admin-gui,admin-script"/>
and save the file and then issue command
chmod 755 /opt/tomcat sh /opt/tomcat/bin/startup.sh