Does anyone know of a program to split stdin into multiple output streams? By "split" I really mean "stripe", where lines are striped accross the output files.
Something like this:
cat file | command 4 1> 1.out 2> 2.out 3> 3.out 4> 4.out

If you just want to split a file into multiple pieces, there is in fact a cmd called 'split' that does that.
If you actually meant something else, please give more context/example.

Im specifically looking for a way to split the output using a round-robbin approach, similar to a stripe, where each successive line goes to the next file in the sequence.
I can do each output, one at a time by using the awk command with a 'NR%value' to determine which group a record falls into, but it requires multiple passes.
Was looking for a way to split the input into output files so that each output file get's the same number of lines (+- one) to account for odd line counts.

Line 1 -> file 1
Line 2 -> file 2
Line 3 -> file 3
etc...
Line N -> file 1
Line N+1 -> file 2
etc...

No it doesn't. Awk will handle all this in one pass if you direct the print to a filename (as a string) - simply use the modulo result as a suffix for example.

Can you give me an example? I don't see how to do it in one pass.