done
unset FILE
}
+
+if ( grep -qsE '^root:[!x]?:' /etc/shadow && \
+ grep -qsE '^root:[!x]?:' /etc/passwd && \
+ [ -z "$FAILSAFE" ] )
+then
+cat << EOF
+=== WARNING! =====================================
+There is no root password defined on this device!
+Use the "passwd" command to set up a new password
+in order to prevent unauthorized SSH logins.
+--------------------------------------------------
+EOF
+fi