unitproc/bkt-promptLoop

   1 #!/bin/bash
   2
   3 # Desc: Prompts user until valid answer given.
   4
   5 while ! [ "$prompt_status" = "answered" ]; do
   6     echo "Perform action? (y/n):" 1>&2;
   7     read prompt;
   8     case "$prompt" in
   9         "y" | "yes")
  10             echo -e "Doing stuff.";
  11             prompt_status="answered";
  12             ;;
  13         "n" | "no")
  14             echo "Doing nothing.";
  15             prompt_status="answered";
  16             ;;
  17         *)
  18             echo "WARNING:Invalid option $prompt"
  19             prompt_status="";
  20             ;;
  21     esac
  22 done