"Gordon W. Ross" writes:
> What is the concern about letting a user set some environment
> variables on the line with their login name?  What does this
> mechanism allow that they couldn't have done anyway as soon as
> they get their shell prompt?

Not all users have shells, you see. Some users are front end programs
that don't necessarily trust their users. Some users have such
programs do various things before they get their shells, and so
forth...

Perry