VMS: logicals UNIX: links, but...

[Ralph Finch]

VMS has logicals, and UNIX has links, but they are not quite the same.
There is one feature of VMS logicals I would like in Unix--can anyone
tell me if it's available?

We run models, and often want to run the same model, simultaneously,
in the same directory, with two different input files, and produce two
corresponding output files.  In VMS it is easy by defining logical
names which apply only to that process.  Thus, two processes don't
see each other's logical names, and don't interfere with each other.

Is this possible in Unix?  Links are nice, but since they apply to the
directory, and not just the process, they don't work in the above
situation. 

Thanks,
-- 
Ralph Finch
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