[Info-vax] Why does this DIFF command fail, then run fine the 2nd time around?

[Jan-Erik Söderholm]

Den 2022-12-13 kl. 04:00, skrev alanfe... at gmail.com:

> I find the rooted directory bit very useful. In this case, I can maintain a parallel world on the scratch disk on EISNER. The top directories aren't the same, but with the rooted directory, I can make my own directory tree the same.
> 
> I can have
> 
> DISK_USER:[DECUSERVE_USER.FELDMAN]
>    SCRFELD:[DECUSERVE_USER.FELDMAN]
> 
> Then I can create a parallel directory structure on the scratch disk, move less important old versions of files and other less important files to SCRFELD:, where I am not limited by a disk quota.
> 
> I can use commands like $ BACK/VERI/DELE files SCRFELD:  !!!  and the files go over without having to specify the scratch disk version of the directory I happen to be in!
> 
> 

There are other cases where rooted dirs saves a lot of work.

Take as an example an Rdb database. All the files and directories
that Rdb used for storage areas, RUJ and AIJ files, backup files
and so on *should* be on rooted dirs. Then you do not need to
recreate (backup/restore) the database just because your physical
disks has changed names. Just adjust your rooted dirs to the new
physical disk names and start-up Rdb again.

Normal logical names will not do, since Rdb will translate them
and store the translated name in the database.