mt:tldr:59c13

The command "mt -f ${-dev-nstX} eod" is used to perform an "end of data" operation on a tape device.

Here's a breakdown of the command:

• "mt" is a command-line utility that is used to control various tape drive operations.
• "-f" option is used to specify the tape device file to perform the operation on.
• "${-dev-nstX}" is a placeholder that should be replaced with the actual tape device file path. The specific value of "-dev-nstX" depends on the system configuration and the tape device being used.
• "eod" stands for "end of data" and refers to a command to move the tape to the end of recorded data. This can be helpful when working with tape backups and wanting to position the tape at the end for further operations.

In summary, the command is telling the "mt" utility to operate on the tape device specified by "-dev-nstX" and perform an "end of data" operation. The specific tape device and its file path need to be provided to make the command work properly.