下载解压

https://www.scala-lang.org/download/2.12.15.html
tar -zxvf scala-2.12.15.tgz -C /opt/bigdata/
ln -s scala-2.12.15 scala
vim /etc/profile.d/scala_env.sh

#set scala environment
export SCALA_HOME=/opt/bigdata/scala
export PATH=$PATH:$SCALA_HOME/bin

source /etc/profile
scala -version

基础指令

scala