/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