How to? TEE - duplicate output to STDERR

[AnrDaemon]

In Linux, I can easily achieve copying STDOUT to STDERR by

ps -al | tee /dev/stderr | wc -l

(I.e. list all processes and display a number of lines at the bottom.)
Is this possible in TCMD?

 

[vefatica]

Now exactly the way you suggested, but you can get both output and the line count.

tasklist | tee con: | wc -l

(snip)
 8908  svchost
 7328  TextInputHost     Microsoft Text Input Application
 2660  tcc
 4784  wc

   Total of 108 processes
110 <--- from wc

Note that (as in your example), wc is also counting headers and footers.

 

[AnrDaemon]

Thanks, that works.

For anybody interested: CON: is an actual terminal device, not the I/O stream of an application. Thus redirecting output to it overrides any external redirections.

Thу full code now is install-cygwin.btm - Pastebin.com

 

[vefatica]

Thanks, that works.

For anybody interested: CON: is an actual terminal device, not the I/O stream of an application. Thus redirecting output to it overrides any external redirections.

Thу full code now is install-cygwin.btm - Pastebin.com

Yup. I suspect that CON: is a handle which results (in C and the Win32 API) from something like this.

HANDLE h = CreateFile(L"CONOUT$", GENERIC_READ | GENERIC_WRITE, FILE_SHARE_WRITE, NULL, OPEN_EXISTING, 0, NULL);