China DOS Union

I used
for /F "usebackq delims=:" %%i in (`date /T`) do set ddtmp=%%i:~-10%
but failed to get month-day-year, very depressing
It seems that ~-10% doesn't work here

OP, what does your date output format look like??

Try this

(echo+%date:~0,10%|find " ") && set "ddtmp=%date:~-10%" || set "ddtmp=%date:~0,10%" echo+%ddtmp% pause

Originally posted by dikex at 2007-11-1 13:14:
Try this

(echo+%date:~0,10%|find " ") && set "ddtmp=%date:~-10%" || set "ddtmp=%date:~0,10%" echo+%ddtmp% pause

This is too complicated...
Your environment isn't plain ms-dos, right? It won't run under my dos
%date "...."

Thanks abcd

But when I put it into a batch file it seems not to work...
for /F "usebackq delims= " %%i in (`echo %date:* =%`) do set ddtmp=%%i
Feels like my original method should also work, maybe it needs a cmd /d command extensions delay something like that




By the way, could you explain what syntax this is? How can I find explanations of this kind of syntax??

What I mean is there's no need for for, just echo it directly. You can directly use
%date:~6% as a variable.

Yeah, under some consoles it works, but under some it shows %i, still don't know the reason for now

If using for

for /f "tokens=1*" %%i in ('date /t') do @echo %%j

Originally posted by abcd at 2007-11-1 17:01:
If using for

for /f "tokens=1*" %%i in ('date /t') do @echo %%j

I can do this step too
But if I replace echo with set xx=%j:~-10%
it seems it won't work
I'll try again, thanks

Get this straight

Variable %%j and variable %j% are not the same

%%j can only be used inside for, and it can only be expanded, not sliced

And %j% can only be sliced or replaced, but cannot be expanded

That was a real enlightenment!!! 3x

Originally posted by biwier at 2007-11-1 04:10 PM:


This is too complicated...
Your environment isn't plain ms-dos, right? It won't run under my dos
%date "...."

ms-dos? dos?
As I recall, for in those doesn't have the /f parameter, so yours can't be ms-dos;
cmd in 2000, xp, etc. is the command prompt, not dos, and it's very different from dos.

And my runtime environment is xp sp2 pro;

The default date format is: 2007-11-01 Thursday
After changing the date format it becomes: Thu 2007-11-01

Both date formats can be handled in the command line and in batch files through

Originally posted by dikex at 2007-11-1 07:25 PM:


ms-dos? dos?
As I recall, for in those doesn't have the /f parameter, so yours can't be ms-dos;
cmd in 2000, xp, etc. is the command prompt, not dos, and it's very different from dos.

And my run ...

I tested it on my machine at home, yours does work. At the company I had written it in a script and tested it on an English edition OS.
But writing three statements like that is way too complicated.... an expert really thinks of everything ^_^


Rochechild=biwier