#!/bin/bash JV=$(java -version 2>&1 >/dev/null | head -1) echo "$JV" | sed -E 's/^.*version "([^".]*)\.[^"]*".*$/\1/' if [ "$JV" != 16 ]; then case "$1" in install) echo "installing sdkman..." curl -s "https://get.sdkman.io" | bash source ~/.sdkman/bin/sdkman-init.sh sdk install java 16.0.1-open ;; use) echo "must source ~/.sdkman/bin/sdkman-init.sh" exit 1 ;; esac fi