| 1 | .\" Copyright (c) 1980 Regents of the University of California. |
| 2 | .\" All rights reserved. The Berkeley software License Agreement |
| 3 | .\" specifies the terms and conditions for redistribution. |
| 4 | .\" |
| 5 | .\" @(#)mt.1 6.2 (Berkeley) %G% |
| 6 | .\" |
| 7 | .TH MT 1 "" |
| 8 | .UC 4 |
| 9 | .SH NAME |
| 10 | mt \- magnetic tape manipulating program |
| 11 | .SH SYNOPSIS |
| 12 | .B mt |
| 13 | [ |
| 14 | .B \-f |
| 15 | .I tapename |
| 16 | ] |
| 17 | .I command |
| 18 | [ |
| 19 | .I count |
| 20 | ] |
| 21 | .SH DESCRIPTION |
| 22 | .I Mt |
| 23 | is used to give commands to a magnetic tape drive. |
| 24 | If a tape name is not specified, the environment variable |
| 25 | TAPE is used; if TAPE does not exist, |
| 26 | .I mt |
| 27 | uses the device |
| 28 | .IR /dev/rmt12 . |
| 29 | Note |
| 30 | that |
| 31 | .I tapename |
| 32 | must reference a raw (not block) tape device. |
| 33 | By default |
| 34 | .I mt |
| 35 | performs the requested operation once. Operations |
| 36 | may be performed multiple times by specifying |
| 37 | .IR count . |
| 38 | .PP |
| 39 | The available commands are listed below. Only as many |
| 40 | characters as are required to uniquely identify a command |
| 41 | need be specified. |
| 42 | .TP |
| 43 | .BR eof , " weof" |
| 44 | Write |
| 45 | .I count |
| 46 | end-of-file marks at the current position on the tape. |
| 47 | .TP |
| 48 | .B fsf |
| 49 | Forward space |
| 50 | .I count |
| 51 | files. |
| 52 | .TP |
| 53 | .B fsr |
| 54 | Forward space |
| 55 | .I count |
| 56 | records. |
| 57 | .TP |
| 58 | .B bsf |
| 59 | Back space |
| 60 | .I count |
| 61 | files. |
| 62 | .TP |
| 63 | .B bsr |
| 64 | Back space |
| 65 | .I count |
| 66 | records. |
| 67 | .TP |
| 68 | .B rewind |
| 69 | Rewind the tape |
| 70 | .RI ( Count |
| 71 | is ignored). |
| 72 | .TP |
| 73 | .BR offline , " rewoffl" |
| 74 | Rewind the tape and place the tape unit off-line |
| 75 | .RI ( Count |
| 76 | is ignored). |
| 77 | .TP |
| 78 | .B status |
| 79 | Print status information about the tape unit. |
| 80 | .PP |
| 81 | .I Mt |
| 82 | returns a 0 exit status when the operation(s) were successful, |
| 83 | 1 if the command was unrecognized, and 2 if an operation failed. |
| 84 | .SH FILES |
| 85 | .DT |
| 86 | /dev/rmt* Raw magnetic tape interface |
| 87 | .SH "SEE ALSO" |
| 88 | mtio(4), dd(1), ioctl(2), environ(7) |