The t-unload command rewinds the attached
tape. On D3 UNIX systems, this command does the usual tape unload.
Depending on the UNIX operating system, this command may wait for
the tape to rewind before returning.
Syntax
t-unload
Synonym(s)
t-unld
Note: On some devices (floppy disks, SCTs, pseudo tapes,
and so on) that unloading has no meaning, this command does
a rewind.