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mt

Introduction

This cheat sheet provides a quick reference for some common mt (Magnetic Tape Control) commands and concepts. mt is a command-line utility used to control and manipulate magnetic tape drives on Unix-like operating systems.

mt Concepts

Device Identification

mt requires specifying the tape drive device as an argument.

  • Identify the tape drive device:
    mt -f /dev/st0 status

Tape Movement

You can use mt to move the tape forward, backward, rewind, and more.

  • Rewind the tape:

    mt -f /dev/st0 rewind
  • Move the tape forward by a specified number of files:

    mt -f /dev/st0 fsf 3
  • Move the tape backward by a specified number of files:

    mt -f /dev/st0 bsf 2

Tape Status

mt provides information about the tape drive and current tape status.

  • Display the status of the tape drive:
    mt -f /dev/st0 status

Tape Marks

You can write and skip tape marks.

  • Write a file tape mark:

    mt -f /dev/st0 weof
  • Skip a file tape mark:

    mt -f /dev/st0 eof

Tape Density

mt allows you to set tape density.

  • Set the tape density to 6250 BPI:
    mt -f /dev/st0 density 6250

mt Command-Line

  • Identify the tape drive device:

    mt -f /dev/st0 status
  • Rewind the tape:

    mt -f /dev/st0 rewind
  • Move the tape forward by a specified number of files:

    mt -f /dev/st0 fsf 3
  • Move the tape backward by a specified number of files:

    mt -f /dev/st0 bsf 2
  • Display the status of the tape drive:

    mt -f /dev/st0 status
  • Write a file tape mark:

    mt -f /dev/st0 weof
  • Skip a file tape mark:

    mt -f /dev/st0 eof
  • Set the tape density to 6250 BPI:

    mt -f /dev/st0 density 6250

Conclusion

This cheat sheet covers some common mt (Magnetic Tape Control) commands and concepts. mt is a useful tool for controlling and managing magnetic tape drives on Unix-like operating systems, making it valuable for backup and archival tasks; refer to the official mt documentation for more in-depth information and advanced usage.