Interdata732/usr/doc/man/man1/tc.1

.th TC I
.sh NAME
tc - tape commands
.sh SYNOPSIS
tc [-N] command [count]
.sh DESCRIPTION
Position the tape on drive /dev/mtN
(default mt0).
Commands are:

.dt
.nf
	ff	Forward Space File
	bf	Back Space File
	wf	Write File Mark
	fr	Forward Space Record
	br	Back Space Record
	rw	Rewind
.fi

If
.it count
is specified, the command is repeated
.it count
times.