Current process in NOS??

[Anders.Klemets@CS.CMU.EDU]

You Could do

extern sturct proc *Cmdpp;
if (Curproc == Cmdpp)

in cmdparse() but it would probably be a cleaner solution if you move
the call to doexec() to the appropriate place in main.c and leave
cmdparse() unchanged.
The routine in main.c that calls cmdparse() would call doexec() if
cmdparse() returns -1.
But using the '!' character as a shell escape prefix as Milton Miller
suggested is probably even better.

Anders