install-java.sh

echo "Installing JDK8"
sudo mkdir -p /opt/java/jdk8
sudo tar -xzf jdk-8u251-linux-x64.tar.gz -C /opt/java/jdk8 --strip-components=1 jdk1.8.0_251

echo "Installing JDK11"
sudo mkdir -p /opt/java/jdk11
sudo tar -xzf jdk-11.0.7_linux-x64_bin.tar.gz -C /opt/java/jdk11 --strip-components=1 jdk-11.0.7

echo "Installing JDK13"
sudo mkdir -p /opt/java/jdk13
sudo tar -xzf jdk-13.0.2_linux-x64_bin.tar.gz -C /opt/java/jdk13 --strip-components=1 jdk-13.0.2

echo "Configuring Environment Variables"
FILE='/home/altitdb/.bashrc'

LINE='export JDK8=/opt/java/jdk8'
grep -qF -- "$LINE" "$FILE" || echo "$LINE" >> "$FILE"

LINE='export JDK11=/opt/java/jdk11'
grep -qF -- "$LINE" "$FILE" || echo "$LINE" >> "$FILE"

LINE='export JDK13=/opt/java/jdk13'
grep -qF -- "$LINE" "$FILE" || echo "$LINE" >> "$FILE"

LINE='export JAVA_HOME=$JDK13'
grep -qF -- "$LINE" "$FILE" || echo "$LINE" >> "$FILE"

LINE='export PATH=$PATH:$JAVA_HOME/bin'
grep -qF -- "$LINE" "$FILE" || echo "$LINE" >> "$FILE"

source ~/.bashrc