通过shell判断操作系统发行版

if [[ "$OSTYPE" == "linux-gnu" ]]; then
    if [ -f /etc/redhat-release ]; then
        echo "Redhat Linux detected."
    elif [ -f /etc/SuSE-release ]; then
        echo "Suse Linux detected."
    elif [ -f /etc/arch-release ]; then
        echo "Arch Linux detected."
    elif [ -f /etc/mandrake-release ]; then
        echo "Mandrake Linux detected."
    elif [ -f /etc/debian_version ]; then
        echo "Ubuntu/Debian Linux detected."
    else
        echo "Unknown Linux distribution."
    fi
elif [[ "$OSTYPE" == "darwin"* ]]; then
    echo "Mac OS (Darwin) detected."
elif [[ "$OSTYPE" == "freebsd"* ]]; then
    echo "FreeBSD detected."
else
    echo "Unknown operating system."
fi

https://getsubstrate.io