@echo off
rem code from http://stackoverflow.com/questions/11364147/setting-a-windows-batch-file-variable-to-the-day-of-the-week
rem Make the win32_localtime output all one line, though some versions may contain blank lines as well.
rem So ignore blank lines and just pick up the number after the equal sign.
for /f "delims== tokens=2" %%a in ('wmic path win32_localtime get dayofweek /format:list') do (
    rem Increment the DOW as it is documented to be a zero-based index starting with Sunday.
    set /a DayOfWeekIndex=%%a+1
)
rem Also get name day of week. The DOW coming in is now a one-based index.
rem This is used to reference the "array" of week day names.
set DayOfWeekNames=Sunday Monday Tueday Wednesday Thursday Friday Saturday
for /f "tokens=%DayOfWeekIndex%" %%b in ("%DayOfWeekNames%") do (
    set DayOfWeekName=%%b
)
rem Next copy the Acronis backup file to new drive & rename
if exist d:\Backup1\TestCopy*.tib del d:\Backup1\TestCopy*.tib
if exist d:\Backup1\%DayOfWeekName%.tib del d:\Backup1\%DayOfWeekName%.tib
copy d:\Backup\TestCopy*.tib d:\Backup1\
ren d:\Backup1\TestCopy*.tib %DayOfWeekName%.tib
echo Acronis backup copied to %DayOfWeekName%.tib