Installing Apache Maven

The installation of Apache Maven is a simple process of extracting the archive and adding the bin folder with the mvn command to the PATH.

Detailed steps are:

Ensure JAVA_HOME environment variable is set and points to your JDK installation
Extract distribution archive in any directory

unzip apache-maven-3.6.0-bin.zip

or

tar xzvf apache-maven-3.6.0-bin.tar.gz

Alternatively use your preferred archive extraction tool.

Add the bin directory of the created directory apache-maven-3.6.0 to the PATH environment variable
Confirm with mvn -v in a new shell. The result should look similar to

Apache Maven 3.6.0 (97c98ec64a1fdfee7767ce5ffb20918da4f719f3; 2018-10-24T20:41:47+02:00)
Maven home: /opt/apache-maven-3.6.0
Java version: 1.8.0_45, vendor: Oracle Corporation
Java home: /Library/Java/JavaVirtualMachines/jdk1.8.0_45.jdk/Contents/Home/jre
Default locale: en_US, platform encoding: UTF-8
OS name: "mac os x", version: "10.8.5", arch: "x86_64", family: "mac"

Windows Tips

Check environment variable value e.g.

echo %JAVA_HOME% 
C:\Program Files\Java\jdk1.7.0_51

Adding to PATH: Add the unpacked distribution’s bin directory to your user PATH environment variable by opening up the system properties (WinKey + Pause), selecting the “Advanced” tab, and the “Environment Variables” button, then adding or selecting the PATH variable in the user variables with the value C:\Program Files\apache-maven-3.6.0\bin. The same dialog can be used to set JAVA_HOME to the location of your JDK, e.g. C:\Program Files\Java\jdk1.7.0_51
Open a new command prompt (Winkey + R then type cmd) and run mvn -v to verify the installation.

Unix-based Operating System (Linux, Solaris and Mac OS X) Tips

Check environment variable value

echo $JAVA_HOME
/Library/Java/JavaVirtualMachines/jdk1.8.0_45.jdk/Contents/Home

Adding to PATH

export PATH=/opt/apache-maven-3.6.0/bin:$PATH

[Reference: https://maven.apache.org/install.html]