examples/choice.sh

   1 #!/bin/sh
   2 # A very simple example to demonstrate mixing options given by links and
   3 # free-form input.
   4
   5 while true; do
   6     cat <<EOF
   7 What's your favourite colour?
   8 => ?red Red
   9 => ?green Green
  10 => ?octarine Octarine
  11 => ?!? [Something else]
  12 EOF
  13     read colour
  14     cat <<EOF
  15 Hmm... $colour, eh? It has its virtues, I suppose.
  16 But are you sure really sure $colour is your favourite?
  17 => ?yes Yes
  18 => ?no No
  19 EOF
  20     while read conf; do
  21         if [ "$conf" == yes ]; then
  22             echo "Fine."
  23             exit
  24         elif [ "$conf" == no ]; then
  25             echo "Hmm, let's try this again then."
  26             break
  27         else
  28             echo "Pardon? Was that yes or no?"
  29         fi
  30     done
  31 done