[Info-vax] Hard links on VMS ODS5 disks

[Dave Froble]

On 7/16/2023 5:25 AM, terry-... at glaver.org wrote:
> On Saturday, July 15, 2023 at 6:43:21 PM UTC-4, Dave Froble wrote:
>> Unless you're trying to read the file while it's still open. That doesn't work.
>
> That's kind of the whole point of 'tail -f' 8-}

RSTS had/has an  open mode with "read regardless" as an option.  This can also 
be done on VMS.  But if a utility on VMS doesn't use such a capability, then it 
won't happen.

Perhaps the design of the utility figures that since reading only what is on 
disk doesn't see anything not yet written, that it's worthless to try.

I've implemented logging in various programs to flush writes to disk 
immediately, since I'd usually want to see up to date logging on a current 
running program.

It's the design of a utility and user programs that defines whether a capability 
is implemented.


-- 
David Froble                       Tel: 724-529-0450
Dave Froble Enterprises, Inc.      E-Mail: davef at tsoft-inc.com
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