Linux install Oracle Java from cmd

1. create folder: /opt/Oracle_Java/
2. download and unzip in /opt/Oracle_Java/:

wget --no-check-certificate --no-cookies --header "Cookie: oraclelicense=accept-securebackup-cookie"  http://download.oracle.com/otn-pub/java/jdk/7u79-b15/jdk-7u79-linux-x64.tar.gz

3. add to system

sudo update-alternatives --install "/usr/bin/java" "java" "/opt/Oracle_Java/jdk1.7.0_VERSION/bin/java" 1
sudo update-alternatives --install "/usr/bin/javac" "javac" "/opt/Oracle_Java/jdk1.7.0_VERSION/bin/javac" 1
sudo update-alternatives --install "/usr/bin/javaws" "javaws" "/opt/Oracle_Java/jdk1.7.0_VERSION/bin/javaws" 1
sudo update-alternatives --install "/usr/bin/jar" "jar" "/opt/Oracle_Java/jdk1.7.0_VERSION/bin/jar" 1 

4. configure system

sudo update-alternatives --set "java" "/opt/Oracle_Java/jdk1.7.0_VERSION/bin/java"
sudo update-alternatives --set "javac" "/opt/Oracle_Java/jdk1.7.0_VERSION/bin/javac"
sudo update-alternatives --set "javaws" "/opt/Oracle_Java/jdk1.7.0_VERSION/bin/javaws"
sudo update-alternatives --set "jar" "/opt/Oracle_Java/jdk1.7.0_VERSION/bin/jar"