[Info-vax] Hard links on VMS ODS5 disks
Robert A. Brooks
FIRST.LAST at vmssoftware.com
Mon Jul 17 12:39:58 EDT 2023
$ help type /tail
TYPE
/TAIL
/TAIL[=n]
Displays the last several lines of a log file. The value, n,
defaults to p-2 where p is the current terminal page length. You
can use TYPE/TAIL only if all of the following criteria are true:
o File organization is sequential.
o The longest record is less than 512 bytes.
o The record format is either VAR, VFC, STM, STRCM or STMLF
(for more information, see the description of FAB$B_RFM in the
OpenVMS Record Management Services Reference Manual).
o The file being typed is on a device that supports random
access. The TYPE/TAIL command does not work on magnetic tape
drives.
Even with this criteria, some file conditions cannot be
anticipated and may not allow display of the last several lines
of a log file, resulting in the following error message:
%TYPE-W-READERR, error reading DEVICE:[DIRECTORY]FILE.EXT;1
-SYSTEM-E-UNSUPPORTED, unsupported operation or function
--
-- Rob
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