dumpdir - print the names of files on a dump tape

dumpdir  [ f filename ]

Dumpdir is used to read magtapes dumped with the dump command and list the names and inode numbers of all the files and directories on the tape.

The f option causes filename as the name of the tape instead of the default.

default tape unit varies with installation
rst*

dump(1), restor(1)

If the dump extends over more than one tape, it may ask you to change tapes. Reply with a new-line when the next tape has been mounted.

There is redundant information on the tape that could be used in case of tape reading problems. Unfortunately, dumpdir doesn't use it.