#!/bin/bash
# test how to ask user in menu/option list form
# KLL rev  10.4.2018

# optional terminal colors
WHT='\E[37;44m'   # white on blue background
BLU='\E[47;34m'   # blue on white background
MAG='\E[47;35m'   # magenta on white background
GRN='\E[47;32m'   # green on NO background
RED='\E[47;31m'   # red on white background
BLK='\E[47;30m'   # black on white background
BOLD='\033[1m'             # and BOLD
END2='\033[0m'             # end bold

# local text variables
CMDDEFAULT='sudo raspi-config'   # at any wrong key or timeout execute this command
MENUHEAD='_____ BASH user menu ______'
MENUOPT1=' -1- option 1______________'
MENUOPT2=' -2- option 2______________'
MENUOPT3=' -3- option 3______________'
MENUOPT4=' -d- default start :_______'
MYINFOPT=' use 1 2 3 or d ___________\n quit [qQ] or [ctrl][c] ___\n with d or any key ________\n or timeout 30s do default '

MYANSWER=''

echo -e $RED$MENUHEAD$END2
echo -e $BLU$MENUOPT1$END2
echo -e $BLU$MENUOPT2$END2
echo -e $BLU$MENUOPT3$END2
echo -n -e $BLK$MENUOPT4$END2
echo -e $WHT$CMDDEFAULT$END2

#echo -n $MYINFO   # -n if no new line required
echo -e $MAG$MYINFOPT$END2
# timeout, one character input only / no ENTER required
read -t 30 -n 1 -p '? ' MYANSWER
     case $MYANSWER in
     [1]*) echo ' You said: 1'
     ;;
     [2]*) echo ' You said: 2'
     ;;
     [3]*) echo ' You said: 3'
     ;;
     [Yy]*) echo ' You said: yes'
     # what to do next?
     echo 'yes next'
     ;;
     [Nn]*) echo ' You said: no'
     # what to do next?
     echo 'no next'
     ;;
     [Qq]*) echo ' You said: quit';;
     *) echo ' !wrong answer or timeout, i do default: '$CMDDEFAULT
     # what to do default ( any key or timeout )
     $CMDDEFAULT
     ;;
     esac
#