Trying to automatically find the version of classfiles in Android SDK. See also: https://stackoverflow.com/q/78890085/7009800

script.sh

#!/usr/bin/env bash

set -euo pipefail

for file in *.zip; do
    version="$(echo "$file" | cut -d '-' -f 4 | cut -d '.' -f 1)"
    new_dir="android-clt-$version"
    echo "extracting file $file into $new_dir"

    unzip -o -d "android-clt-$version" "$file" >/dev/null 2>&1

    cd "./android-clt-$version"

    # extract jar and print classfile version
    rm -rf com/ META-INF/ NOTICE

    if [ "$version" -ge 4 ]; then
        # CLT v4 changed directory structure
        tar -xf cmdline-tools/lib/common/*.jar
    else 
        tar -xf tools/lib/common/*.jar
    fi
    javap -v com/android/Version.class | grep major
    # clean up
    rm -rf com/ META-INF/ NOTICE
    cd ..
done