ENH: Prompt for password twice and verify

Author: kernc

myba.sh

@@ -110,8 +110,11 @@ _read_vars () {
 _ask_pw () {
     if [ -z "${PASSWORD+1}" ]; then
         stty -echo
-        IFS= read -p "Enter encryption password: " -r PASSWORD
+        IFS= read -p "Enter encryption PASSWORD=: " -r PASSWORD
         echo
+        IFS= read -p "Repeat: " -r PASSWORD2
+        [ "$PASSWORD" = "$PASSWORD2" ] || { warn 'ERROR: Password mismatch!'; exit 1; }
+        unset PASSWORD2
         stty echo
     fi