Winboard Forum

How can I pipe the window output from another window started by
a batch file to a text file?
Somehow I only get results with empty files, probably it pipes
the bat window instead of the working window?

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e.g.
start/wait foo /flag1 /flag2 path\prog.exe > foo.txt

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or:
start/wait foo /flag1 /flag2 path\prog.exe
/wait  > foo.txt

doesn't work?

Regards,
Guenther

Hi Guenther,

The problem is the "start" command. The pipe is applied to the start.exe instead of the actual command.

A workaround is to put the command in a batch file and then run it like so:

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start /wait foo.bat

foo.bat would contain:

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path\prog.exe > foo.txt

Hope this helps,

Ross

Thanks Ross, I will try your suggestion.

Best regards,
Guenther

G?nther, if foo.exe is a Windows console program (like many WB chess engines) or some old DOS program, you would not need start /wait at all. Just put

foo /flag1 /flag2 path\prog.exe > foo.txt

into the batch. If foo is a GUI type program, you cannot redirect the output.

The suggestion of Ross should work as well, of course.

Regards,
Dieter

BTW. your command line looks suspicious, because of the path/prog.exe.

Do you really want to start foo? Or do you want to start path/prog.exe?

Your command line would mean, that path\prog.exe is a parameter to program foo.

Typical sample command lines would rather look like:

foo /flag1 /flag2 > foo.txt

or

path\foo /flag1 /flag2 > foo.txt

Regards,
Dieter

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BTW. your command line looks suspicious, because of the path/prog.exe.

Do you really want to start foo? Or do you want to start path/prog.exe?

Your command line would mean, that path\prog.exe is a parameter to program foo.


Hi Dieter,

That part is correct, as path\prog is also a parameter for foo
BTW 'foo' is GradualTest and 'prog' is a chess program started by it
and it works as it should, except the pipe part, but it will
work with the indirection Ross suggested I guess.
With my batch I can run several tests for epds automatically
over night. I just want to save the whole debug output too,
because I can do further things with it.

Best regards,
Guenther