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This page displays the COHERENT manpage for tape [Manipulate a tape device].
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tape -- Command Manipulate a tape device tape command [count] [device] The command tape lets you manipulate a tape device. device names the tape device to manipulate. If you name no device on the command line, tape uses the device T_DEFAULT; header file <tape.h> defines this constant to be device /dev/tape. For a list of tape devices, see the overview article for tape. command names the task that you want tape to execute, as follows: erase Erase the tape. SCSI tape only. retension Retension the tape. This rewinds the tape, then performs a full forward wind, then another rewind. The seek offset is set to zero. rewind Rewind the tape. This command positions the tape at the beginning of track 0. It resets seek offset (see seek and tell, below) to zero. If tape is already rewound, this command has no effect. rfm Move the tape forward to the next file mark; in effect, skip the current file. SCSI tape only. seek location This command has the same effect as if the tape had just been used with no-rewind-on-close, leaving the tape at byte location. No tape motion occurs at the time of the command, but the next read or write begins at byte location on the tape. Floppy tape only. status Display various parameters for the tape drive, and for the cartridge being used. Not every tape drive supports every status option. Unsupported features appear as ``unavailable''. The following gives an example of output from this command: Floppy Tape Status: Drive Configuration = 0x90 500 Kbits/sec Non-Extra-Length Tape QIC-80 Mode. ROM Version = 0x85 Vendor ID = 0x0146, Make=5, Model=6 Tape Status Unavailable. Drive Status = 0x65 drive ready or idle cartridge present cartridge referenced at physical BOT Drive Error Status - No Error. Floppy tape only. tell Display the byte offset that will be in effect the next time the tape is read or written. Floppy tape only. The related command ftbad lets you read and modify the list of bad blocks on a floppy-tape cartridge. See Also commands, ftbad, hai, tape