1. go to the websie to download the newest version of ant (search google by "Apache Ant").

2. $ cd Downloads

3.$ ls

4.$ tar -xf apache-ant-1.9.3-bin.tar.gz

5. $ mv apache-ant-1.9.3 ant (rename the ant folder)

6. $ sudo mv ~/Downloads/ant /usr/local (move the ant to the /usr/local)

7. $ sudo gedit /etc/profile

8. adding the fellowin into the file

export ANT_HOME=/usr/local/ant

export JAVA_HOME=/usr/lib/jvm/java--oracle

export PATH=$JAVA_HOME/bin:$PATH:$ANT_HOME/bin

export CLASSPATH=.:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jar

Note:  JAVA_HOME depends on your own foldr

9. $ source /etc/profile

10 .$ ant -version (testing the ant)