Directory Store backup Script

[Starrett]

Hello,

I have written a script to copy my Citrix Data Store to another server daily.
I want to rename my datastore copy by the date and time.
I am having trouble appending my time variable to my file name because of a leading null character.
Name output Example: "mf20.mdb.2005-04-12_ 43355"
My file name ends up with a space in it just after the underscore when run in the morning before 10AM.
Thanks for any help.

@echo on
set lbkfile=C:\citrixds_backup
set rbkfile=\\server\U$\CITRIX_DSbackup
set dstr=%date:~10,4%-%date:~4,2%-%date:~7,2%
set tstr=%time:~0,2%%time:~3,2%%time:~7,2%
if not exist %rbkfile% md %rbkfile%
dsmaint backup %lbkfile%
net use B: \\server\U$ /persistent:no
copy %lbkfile%\mf20.mdb B:\CITRIX_DSbackup\mf20.mdb.%dstr%_%tstr%
del %lbkfile%\mf20.mdb
if exist B:\CITRIX_DSbackup\mf20.mdb.%dstr%_%tstr% (
echo Citrix Farm DataStore for the "Citrix Farm" was copied to: >>ctx
echo %rbkfile%. >>ctx
echo This is a daily backup which is recommended by Citrix in case of DataStore corruption. >>ctx
echo This script is located on the Citrix server in C:\CitrixDS_backup directory. >>ctx
set status=SUCCESSFUL
goto :mail
) else (
The Citrix DAILY Data Store Backup FAILED! >>ctx
Please check that the scheduled script on CITRIX2 ran properly. >>ctx
Please make sure that the \\server\U$\CITRIX_DSbackup path was available to copy to. >>ctx
echo This script is located on the Citrix server in C:\CitrixDS_backup directory. >>ctx
set status=FAILURE
)
:mail
pause
net use B: /delete
bmail -s 172.16.16.6 -t test@test.com -f test@test.com -a "%status%!-Citrix daily Data Store backup %dstr%_%tstr%" -m ctx -c