[Foreigner]

Например так:

Код:

@echo off
setlocal

for /f %%i in ('findstr /v "#" file.ini') do set "_$%%i"

set /a n=%date:~0,2% %% 2

set /a _$portal.http.port=8860+%n%0
set /a _$portal.https.port=8861+%n%0
set /a _$unifi.http.port=8062+%n%0
set /a _$unifi.https.port=8463+%n%0

1>file.tmp (

    findstr "#" file.ini
    for /f "tokens=2 delims=$" %%i in ('set _$') do echo %%i

)

move file.tmp file.ini

C:\Windows\System32\javaw.exe -jar "C:\Users\User\Ubiquiti UniFi\lib\ace.jar" ui

В начале месяца 31-ое - 1-ое будет 7