detect_shell(){
    if [ -n "$BASH_VERSION" ]; then
        shell="bash"

    elif [ -n "$ZSH_VERSION" ]; then
        shell="zsh"

    elif [ -n "$KSH_VERSION" ]; then
        case "$KSH_VERSION" in
            *"MIRBSD"*) shell="mksh" ;;   # MirBSD Korn shell
            *)          shell="ksh" ;;
        esac

    elif [ -n "$FISH_VERSION" ]; then
        shell="fish"

    elif [ -n "$tcsh" ]; then
        shell="tcsh"

    elif [ -n "$version" ]; then
        shell="csh"

    else
        # Fallback: try process name
        shell=$(ps -p $$ -o comm= 2>/dev/null)

        case "$shell" in
            dash) shell="dash" ;;
            sh)   shell="sh (unknown variant)" ;;
            ash)  shell="ash" ;;
            *) shell="unknown" ;;
        esac
    fi

    echo $shell
}

shell=`detect_shell`
## echo "Detected shell: $shell"
case "${shell:-}" in
    zsh)
    alias ld="ls -d --color=auto .*(^D)"
    # Add more aliases here
    ;;
    bash)
    alias ld="ls -d .[!.]*" ;;
    # Add more aliases here
esac