[Info-vax] DIR/DATE_FORMAT=DELTA ?

[Kenneth Fairfield]

On Monday, January 9, 2012 12:55:02 PM UTC-8, JF Mezei wrote:
> Kenneth Fairfield wrote:
> 
> > But as others have said, it's a bit difficult to 
> > see how DELTA time helps you, 
> 
> 
> If <delta time> greater than X, then take some action.
> 
> File not modified for X time, then archive it.
> File not backed up for X time, then do a backup.

Isn't what what the /SINCE qualifier does for you?  
Granted, you might need to do a little F$CvTime work first,
and as below:

> However, since such activities are more likely done in a command
> procedure, and command procedures can use f$file_attributes and then
> F$CVTIME, that functionality is already there.

True.  But in addition with respect to the OP, a DELTA
time makes no sense in the absence of a reference time
(to take the DELTA wrt).  DIRECTORY will do that job once
the reference ABSOLUTE time is determined.

   -Ken