Install Scala Shell

# download the install deb
wget https://downloads.lightbend.com/scala/2.12.7/scala-2.12.7.deb
# install the deb pacakge
sudo dpkg -i scala-2.12.7.deb
# check the version
scala -version
# enter the scala shell
scala	
# quit the scala shell
:q
# paste code
:paste