mudar terminal padrão devuan no i3

# update-alternatives --config x-terminal-emulator

desabilitar login grafico - devuan / startx

edite o arquivo default-display-manager

# vim /etc/X11/default-display-manager

comente a linha /usr/bin/slim

adicione abaixo
/bin/true

instalar virtualbox Debian 9 / Devuan ascii

$ wget -q https://www.virtualbox.org/download/oracle_vbox_2016.asc -O- | sudo apt-key add -

$ wget -q https://www.virtualbox.org/download/oracle_vbox.asc -O- | sudo apt-key add -

# echo "deb http://download.virtualbox.org/virtualbox/debian stretch contrib" >> /etc/apt/sources.list

# apt-get update
# apt-get install virtualbox-6.0

mostrar porcentagem comando cp

cp arquivo /caminho/do/arquivo | progress -m

OBS: instale o progress

$ sudo apt-get install progress

alternativa

gcp

para instalar
$ sudo apt-get install gcp

menu shell script

while :
do
    clear
    cat<<EOF
    ==============================
    Menusystem experiment
    ------------------------------
    Please enter your choice:

    Option (1)
    Option (2)
    Option (3)
           (Q)uit
    ------------------------------
EOF
    read -n1 -s
    case "$REPLY" in
    "1")  echo "you chose choice 1" ;;
    "2")  echo "you chose choice 2" ;;
    "3")  echo "you chose choice 3" ;;
    "Q")  exit                      ;;
    "q")  echo "case sensitive!!"   ;; 
     * )  echo "invalid option"     ;;
    esac
    sleep 1
done