batch file on win xp

[nnichols]

Hi there,

Currently, I have a batch file for running a simple backup. The backup directory is set using the name of the directory being backed up plus the current date -

set dd=%date:~0,2%
set mm=%date:~3,2%
set yyyy=%date:~6,4%

set backupdir=c:\tempBAK%yyyy%%mm%%dd%

I need to modify the script so it checks to see if the directory already exists, and if so, it should append "-1" to the backupdir.

It then needs to check again to see if this new backupdir already exists, if so it should change the appended "-1" to "-2", and so on.

I have tried a few things but not making any real progress, and would very much appreciate any help anyone can give.

TIA

nick

[muno]

I can't test it, but I suppose it should work like this.

backup.bat
set dd=%date:~0,2%
set mm=%date:~3,2%
set yyyy=%date:~6,4%

set backupdir=c:\tempBAK%yyyy%%mm%%dd%

if exist %backupdir% (set backupdir=c:\tempBAK%yyyy%%mm%%dd%-1) else <here whatever it normally does>

now I don't know if that works like the way you want it to, but that should give you a good start
-M

[nnichols]

Cheers,

I've already got that much, it's the next bit I'm struggling with.

Instead of appending "-1" it needs to be appending "-%i%" where "i" is an incremented number. That way I can check to see if it exists, if so grab the next value for "i" and try again until it does not exist, at which point the script can continue.

Thanks for your thoughts anyway

Nick

[muno]

Uh, I don't know if that can be done with normal dos commands
I'm sure with vbs it would be a 2minute job

See 'help if' in command prompt for insight on if.
-M

[nnichols]

OK. I've now got this far, but my increment of "%i%" is not working -

@echo off

REM setup backup directory name

set dd=%date:~0,2%
set mm=%date:~3,2%
set yyyy=%date:~6,4%
set backupdir=c:\tempBAK%yyyy%%mm%%dd%
set backupdir1=%backupdir%
set i=0

REM check to see if directory already exists
:checkdir
if not exist %backupdir1% goto continue

set a/ i=%i% + 1
echo i: %i%
set backupdir1=%backupdir%-%i%
goto checkdir


:continue
echo Backup directory: %backupdir1%

Any thoughts as to the problem with "i" not being incremented?

[nnichols]

I feel such a pratt.

Simple typo - "a/" should have been "/a".