Aggiunta funzione per chiedere conferma all'utente

settings/common

@@ -68,6 +68,28 @@ doesAnyFileExist () {
 #		IFS="$OLDIFS"
 #}
 
+function askYesNo () {
+  local question=$1
+  local default=$2
+  local options=""
+
+  if [[ $default = true ]]; then
+    options="[Y/n]"
+    default="y"
+  else
+    options="[y/N]"
+    default="n"
+  fi
+  while true; do
+    read -p "$question $options " -n 1 -s -r REPLY
+    echo ${REPLY}
+    case $REPLY in
+      [yY]) echo ; return 0 ;;
+      [nN]) echo ; return 1 ;;
+      *) printf " \033[31m %s \n\033[0m" "invalid input"
+    esac
+  done
+}
 
 declare -A vms