Tee part of the POSIX standard

http://www.opengroup.org/onlinepubs/9699919799/utilities/tee.html


hugo rivera wrote:

Great, thanks.
Looks like plan 9 guys have thought about everything useful ☺ (and
that I didn't do my homework).

2009/10/1, roger peppe <rogpe...@gmail.com>:
2009/10/1 hugo rivera <uai...@gmail.com>:

I've been wondering for a while if there's some way to multiplex (if
> this is the correct term) stdout for a given program:


that's what tee does.

e.g.
ls | tee >{grep regexp1 > file1} >{grep regexp2 > file2}






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