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I am using the robocopy command to create a backup system, I have successfully managed to copy the folders, but the date stamp is wrong. The folders are prefixed with the date and time .

The robocopy command is this:

robocopy U:\Data\  X:\Private\Backups\FolderName_%date:/=-%-(%time::=-%) /e

The out of the folder is displayed like this:

FolderName_09-11-2013-(20-24-06.60)

The only thing I want to change is the date, I want to show the month as a string with only the first 3 characters like Oct.

Can someone please guide me. Thanks.

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2 Answers 2

Reset to default
6

Please note that using %date% is very Windows-version and region depended. Each language/region has its own settings and the users can change this too. Not really a reliable way to get the date.

The most effective way to get the correct date is with wmic OS Get localdatetime. I'm not sure if you can get the month-name the same way so here i just used some if-statements to get the month-name:

@echo off
for /f "delims=" %%a in ('wmic OS Get localdatetime ^| find "."') do set dt=%%a
set year=%dt:~0,4%
set month=%dt:~4,2%
set day=%dt:~6,2%
if %month%==01 set month=jan
if %month%==02 set month=feb
if %month%==03 set month=mar
if %month%==04 set month=apr
if %month%==05 set month=may
if %month%==06 set month=jun
if %month%==07 set month=jul
if %month%==08 set month=aug
if %month%==09 set month=sep
if %month%==10 set month=oct
if %month%==11 set month=nov
if %month%==12 set month=dec
robocopy U:\Data\  X:\Private\Backups\FolderName_%day%-%month%-%year%-(%time::=-%) /e

I know it's not a "one-liner" but i think it's the most reliable way to get the date.

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  • Isn't it worse than incredible that in the 21st century, an "OS" that has no simple direct command to get the month name, is still allowed to exist (and even being used ...) ? Commented May 8 at 21:52
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This short script will do the exact same thing as the above without the IF statements.

@echo off &setlocal
for /f "tokens=2*" %%a in ('reg query "HKCU\Control Panel\International" /v sShortDate^|find "REG_SZ"') do set "ssShortDate=%%b"
reg add "HKCU\Control Panel\International" /f /v sShortDate /d "ddd MMM" >nul
set "dowlm=%date:~4,3%
echo %dowlm%
endlocal
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