Checking file availability in BAT?

Question

cmd/bat

It is necessary to check with BAT whether the file is available for assigning the read-only attribute.
I tried using errorlevel (&& including) to check the execution, but alas, changing access rights does not write an error to errorlevel even if the attribute could not be assigned.
Thanks in advance.

Answer 1

@echo off
attrib +R test1.txt |>Nul FindStr /i "ЌҐв ¤®бвгЇ :" && echo "File is denied!"
Looks like he won.

Answer 2

Is using PowerShell not an option?

Answer 3

dir/?