install maven 3 ubuntu

cd ~/Downloads
wget http://apache.mirrors.timporter.net/maven/maven-3/3.1.1/binaries/apache-maven-3.1.1-bin.tar.gz
tar -xzvf apache-maven-3.1.1-bin.tar.gz
sudo mkdir -p /usr/local/apache-maven
sudo mv apache-maven-3.1.1 /usr/local/apache-maven

export M2_HOME=/usr/local/apache-maven/apache-maven-3.1.1
export M2=$M2_HOME/bin
export MAVEN_OPTS="-Xms256m -Xmx512m"
export PATH=$M2:$PATH

put the above 4 lines in your ~/.profile