wget oracle jdk

oracle_jdk.sh

# RPM
wget --no-check-certificate \
     --no-cookies \
     --header "Cookie: oraclelicense=accept-securebackup-cookie" \
     http://download.oracle.com/otn-pub/java/jdk/7u45-b18/jdk-7u45-linux-x64.rpm \
     -O jdk-7u45-linux-x64.rpm

# TAR GZ
wget --no-check-certificate \
     --no-cookies \
     --header "Cookie: oraclelicense=accept-securebackup-cookie" \
     http://download.oracle.com/otn-pub/java/jdk/7u45-b18/jdk-7u45-linux-x64.tar.gz \
     -O jdk-7u45-linux-x64.tar.gz

#
# NOTE:
#
# Make sure that you have the correct download url from 
# http://www.oracle.com/technetwork/java/javase/downloads/jdk7-downloads-1880260.html

# cURL alternate
# where, 
#    -L | --location; Required for cURL to redirect through all the mirrors
#    -C / --continue-at -; cURL requires the dash (-) in the end
#    -O; Required for cURL to save files
#    -b / --cookie "oraclelicense=accept-securebackup-cookie"; same as -H/--header "Cookie: ..."
curl -L -C - -b "oraclelicense=accept-securebackup-cookie" \
     -O http://download.oracle.com/otn-pub/java/jdk/8u20-b26/jdk-8u20-linux-x64.tar.gz
     
# Optional, using alternatives to update the JDK to use
# add's a symbolic link to the Oracle JDK installation so that your system uses the Oracle JDK instead of the OpenJDK (if installed)
alternatives --install /usr/bin/java java /usr/java/jdk1.7.0_45/bin/java 200000
# If there are more than on version of java, then tell alternatives to switch (enter approprate number matching the latest installation of JDK)
alternatives --config java

# Update the JAVA_HOME and PATH so that users get the proper installation
cat > /etc/profile.d/java_home.sh <<EOF
export JAVA_HOME=/usr/java/latest
export PATH="$PATH:${JAVA_HOME}/bin"
EOF