SHL LAYERS

[Doug Gwyn]

In article <380 at oblio.UUCP> monte at oblio.UUCP (Monte Pickard) writes:
-In article <5528 at brl-smoke.ARPA>, gwyn at brl-smoke.ARPA (Doug Gwyn ) writes:
-> "shl" can do most of the things you probably use 4BSD job control for,
-> ...
-Good try Doug, but shl (shell layers) is a very poor excuse for job
-control under 4.2.

Is there some significant drawback other than the ones I had
noted (where you elided them as "...")?  How about some information?