China DOS Union

For /L %%f in (1,1,31) Do if %%f == an integer multiple of 10 (echo multiple of 10) else (echo %%f)

pause

Also:
I originally planned to use if %%f ==%%f/10*10, but unfortunately it won't accept it.

[ Last edited by lummox on 2008-8-10 at 09:17 PM ]

Take a look at this:

http://www.cn-dos.net/forum/viewthread.php?tid=41843

Thanks to the friend in the previous post.
I read the thread you mentioned and tested it, but it still won't run. Please advise further.

Still waiting for an answer...

Did you see my reply in 'post #7' of that thread?

I saw it:

'post #5':


CODE: [Copy to clipboard]
--------------------------------------------------------------------------------

for/l %f in (1,1,20) if %@eval[%f %% 5]==0 echo %f

Note: please run it under 4DOS

But I need it to run in the XP DOS window.

In the statement above, if %@eval[%f %% 5]==0 won't run.

Under WindowsXP you can use 4NT or Take Commander; they are 4DOS's successors under Windows.

Originally posted by DOSforever at 2008-8-10 07:19 PM:
Under WindowsXP you can use 4NT or Take Commander; they are 4DOS's successors under Windows.

Thanks for your enthusiastic reply :)

My question still hasn't been answered; I only want a solution under DOS.

4DOS is under DOS; it is a perfect replacement for COMMAND.

First method: based on the fact that multiples of 10 all have 0 in the ones place, use SET to extract the ones digit and then test it (not general-purpose):
@echo off&setlocal enabledelayedexpansion
for /L %%f in (1,1,31) Do (set a=%%f&if !a:~-1! equ 0 (echo %%f is a multiple of 10) else (echo %%f))
pause

Second method: use % for the remainder operation, then test it (general-purpose; for example, if you want to output multiples of 3, that also works):
@echo off&setlocal enabledelayedexpansion
for /L %%f in (1,1,31) Do (set /a a=%%f%%10&if !a! equ 0 (echo %%f is a multiple of 10) else (echo %%f))
pause

[ Last edited by shqf on 2008-8-10 at 11:04 PM ]

Here's the situation: I wrote a batch file and need to use a line of code similar to the one in the question. Although this line can certainly be implemented with some other group of statements, to me that would be equivalent to foreseeing the problem and avoiding it, rather than solving it, so that's why I came here to ask.

Thanks to the friend in post #11 for the reply, but it still won't run.

Save the code from post #14 as xxx.bat
Double-click to run it