Unix layers- using /dev/sxt---

[P McFerrin]

> How does one really use the /dev/sxt--- devices on an AT&T 3b2 Unix 5.2?
> There is a progrsm shl, shell layer manager, that lets you have multiple
> shells all spewing forth at once, but how do you separate the output into
> windows, for example, at the terminal?  Is the device driver in there
> incapable of this right now?  Do you have to write one? (or modify it)
> The manual makes little mention of this.
> 
> Thanks...  ..!ihnp4!wlcrjs!djc

The output can not be separated.  However, there is a shl command to cause
the output to be blocked to your terminal when you leave that layer (e.g.
switch to another layer).  A shl status command is available to inquire
about the status of other running layers which will indicate if it is
blocked on output.

If you really want multiple windows, there is the DMD layers software
which might not be available for the 3b2.