reverse-tee, or, merging stdout's

[Robert Shaw]

Hi.

Is there any way to do the "reverse" of a tee? meaning that I want two streams
merged into one, without using files. For example, how do I run 

prog1 arg1 arg2 
 and
prog2 arg3 arg4 arg5

and "pipe" prog1's stdout, followed by prog2's stdout into prog3?

I want this:

prompt% prog1 arg1 arg2 > tmp1
prompt% prog2 arg3 arg4 arg5 > tmp2
prompt% cat tmp1 tmp2 | prog3

without using the filesystem.

(email, please)

Thanx, all!

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 Rob Shaw                                              rjshaw at ocfmail.llnl.gov
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