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8.5.1.11: MTBSFM

Backward space over count file marks. The tape is positioned at the the BOT (Begin Of Tape) side of the last skipped file mark, which means that `mt -f /dev/qft0 bsfm' (i.e. count set to `1') positions at the end of the previous volume.

Note for zftape: it is nevertheless impossible to use MTBSFM to append data to a tape volume. Since version 3.03 all write access to the tape is illegal when using zftape unless the tape is located at either BOT (Begin Of Tape) or EOD (End Of Data, end of the area that already is occupied by data). EOD is defined to be the location after the last file mark.

Example
skip to end of the previous tape volume

mt -f /dev/nqft0 bsfm

References
see File marks
see MTFSFM
see Rewinding devices
see MTFSF
see MTBSF
see MTWEOF


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