Linux: install Maven 3.8.6

installMaven38.sh

#!/bin/bash
## Because Ubuntu 22.10 still has Maven 3.6.3, this fixes it:

wget -q https://dlcdn.apache.org/maven/maven-3/3.8.6/binaries/apache-maven-3.8.6-bin.tar.gz -P /tmp
mkdir ~/sw/ 
tar xf /tmp/apache-maven-*.tar.gz -C ~/sw/
rm /tmp/apache-maven-*.tar.gz
mv /sw/apache-maven-* -C ~/sw/maven

echo 'MAVEN_HOME=~/sw/maven' >> ~/.bashrc
echo 'M2_HOME=$MAVEN_HOME' >> ~/.bashrc
echo 'PATH=$MAVEN_HOME/bin:${PATH}' >> ~/.bashrc