-- John Kanagaraj <[EMAIL PROTECTED]>
> Mladen,
>
> Are you confusing this on account of your new-found attraction to the 'go'
> command in MS SQL Server (formerly Sybase and T-SQL)? :-)
>
> I though that 'SET DEFAULT [Dir-name]' was the equivalent of 'cd' in
> VMS...
They have nothing whatsoever to do with each other, mainly
becuase VMS doesn't really have the same notion of "working
directory" that *NIX does.
set def can accept a partial path (e.g., 'dka0:',
'[sys.foobar]', or 'dka0:[sys.foobar].exe'). It takes
whatever you give it as a default for commands which
require a filename and uses them as the default portion
of the name if one is not given (e.g., "del myfile" would
take the device, dir & extension from the default).
You can be working on dka100: and perform a set def dka0:
without effecting the O/S treatment of dka0: -- the
items given to set def needn't even exist since they are
not used until the next time a path is given without that
portion (e.g., you can put in a bogus device w/ valid
directory and not know it until you forget to type the
device).
cd actually changes the O/S' view of your process and
the destination path you give it. Performing a cd across
file systems, for example, will leave the new one unable
to umount; on VMS it wouldn't effect anything. You also
cannot cd to a nonexistant directory.
The two commands feel the same syntatically because you
normally use relative paths after performing them; but the
O/S' treatments are entirely different.
enjoi.
--
Steven Lembark 2930 W. Palmer
Workhorse Computing Chicago, IL 60647
+1 800 762 1582
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