How to Install Tomcat 7.0.42 on Ubuntu 12.04.3 LTS

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The sysadmin gave me a virtual machine which I access through terminal.

I have root access and it got Ubuntu 12.04.3 LTS.

The command apt-cache policy tomcat7 informs:

  Installed: (none)
  Candidate: 7.0.26-1ubuntu1.2
  Version table:
     7.0.26-1ubuntu1.2 0
        500 precise-updates/universe amd64 Packages
        500 precise-security/universe amd64 Packages
     7.0.26-1ubuntu1 0
        500 precise/universe amd64 Packages

However, I'd like to install the latest Tomcat 7 (7.0.42) on it.

Is it doable? If yes, how?

Best Answer

Yes, it is possible to install Tomcat 7.0.42, but you'll have to do it "manually".Here are steps on how to do so:

Note: visit this question if you want to know why it's not in the repositories: Why don't the Ubuntu repositories have the latest versions of software?

Prerequisite: you need to have Java installed, and we need its path. Java is usually installed under /usr/lib/jvm. Once you have installed Java, you can run the command update-alternatives --config java to show you the exact path; look at the first entry (the one with a * next to it. You can hit Enter to exit this screen). We only need the directory after /jvm/. On my machine, the directory was /usr/lib/jvm/java-7-openjdk-i386/. This answer will assume that this is the Java directory, but you should change the commands accordingly.

  1. wget

    • This will download Tomcat 7.0.42 to your current directory.
  2. tar xzvf apache-tomcat-7.0.42.tar.gz

    • This will extract the files.
  3. sudo mv apache-tomcat-7.0.42 /usr/local

    • This moves Tomcat to /usr/local. You can choose any path you want. The remaining commands will assume you have used this path.
  4. nano ~/.bashrc - this will open up a text editor. Go to the end of the file (Alt+/) and add the following two lines:

    export CATALINA_HOME=/usr/local/apache-tomcat-7.0.42
    export JAVA_HOME=/usr/lib/jvm/java-7-openjdk-i386/

    Remember: this was the path to my Java. Change it to your installed Java.

  5. . ~/.bashrc

    • This will apply the changes we made.
  6. sudo $CATALINA_HOME/bin/ - you should see something like this:

    Using CATALINA_BASE:   /usr/local/apache-tomcat-7.0.42
    Using CATALINA_HOME:   /usr/local/apache-tomcat-7.0.42
    Using CATALINA_TMPDIR: /usr/local/apache-tomcat-7.0.42/temp
    Using JRE_HOME:        /usr
    Using CLASSPATH:       /usr/local/apache-tomcat-7.0.42/bin/bootstrap.jar:/usr/local/apache-tomcat-7.0.42/bin/tomcat-juli.jar

    And no errors.

You're done. Point your browser to http://localhost:8080 and you should see the Tomcat page: