shopt -s expand_aliases
RELEASE_VERSION_TAG_NAME="release"
kernel=$(uname -s)
echo "[INFO] kernel: ${kernel}"
case "${kernel}" in
"Darwin")
        OS=MacOS
        alias fate_sed_cmd="sed -i ''"
        ;;
"Linux")
        system=$(sed -e '/"/s/"//g' /etc/os-release | awk -F= '/^NAME/{print $2}')
        echo "[INFO] linux system: ${system}"

        case "${system}" in
        "CentOS Linux")
                OS=CentOS
                ;;
        "Ubuntu")
                OS=Ubuntu
                ;;
        *)
                echo "Not support this system."
                exit -1
                ;;
        esac

        alias fate_sed_cmd="sed -i"

        ;;
*)
        echo "Not support this kernel."
        exit -1
        ;;
esac

echo "[INFO] os: ${OS}"

if [[ $(id -u) -eq 0 ]]; then
        is_root=1
        echo "[INFO] is root user"
else
        is_root=0
        echo "[INFO] not root user"
fi