alias ls=ls_mod

ls_mod () {
    DIRS_TO_SHOW_HIDDEN=(dir1 dir2 dir3)
    for DIR in "$@"; do
        for CHECK in "${DIRS_TO_SHOW_HIDDEN[@]}"; do
            if [ "$(realpath "$DIR")" == "$CHECK" ]; then
                ls -a "$DIR"
            else
                ls "$DIR"
            fi
        done
    done
}