#You can download the latest stable version of Apache Maven from its official website, otherwise you can download it directly with the following command:
cd /opt/
wget http://www-eu.apache.org/dist/maven/maven-3/3.3.9/binaries/apache-maven-3.3.9-bin.tar.gz

#Once the download has completed, extract the downloaded archive.
sudo tar -xvzf apache-maven-3.3.9-bin.tar.gz

#Next, rename the extracted directory.
sudo mv apache-maven-3.3.9 maven 

#Next, you will need to setup the environment variables such as M2_HOME, M2, MAVEN_OPTS, and PATH. You can do this by creating a mavenenv.sh file inside of the /etc/profile.d/ directory.
sudo nano /etc/profile.d/mavenenv.sh

#Add the following lines:
export M2_HOME=/opt/maven
export PATH=${M2_HOME}/bin:${PATH}

#Save and close the file, update its permissions, then load the environment variables with the following command:
sudo chmod +x /etc/profile.d/mavenenv.sh
sudo source /etc/profile.d/mavenenv.sh

#Once everything has been successfully configured, check the version of the Apache Maven.
mvn --version

#You should see the following output:
Apache Maven 3.3.9 (bb52d8502b132ec0a5a3f4c09453c07478323dc5; 2015-11-10T22:11:47+05:30)
Maven home: /opt/maven
Java version: 1.8.0_101, vendor: Oracle Corporation
Java home: /usr/lib/jvm/java-8-oracle/jre
Default locale: en_US, platform encoding: ANSI_X3.4-1968
OS name: "linux", version: "3.13.0-32-generic", arch: "amd64", family: "unix"