When viewing this page,

https://www.gnu.org/software/tar/manual/html_node/Incremental-Dumps.html

There is an example,

======================================================================
To list the contents of an incremental archive, use `--list' (see section How 
to List Archives), as usual. To obtain more information about the archive, use 
`--listed-incremental' or `--incremental' combined with two `--verbose' 
options(12):

tar --list --incremental --verbose --verbose archive.tar
======================================================================

I believe that there is a '--files=' missing after the second --verbose.

In any event, this command just hangs (waiting for stdin) when run on my Debian 
linux system.  If, however, I add --files= to the above command, like this:

tar --list --incremental --verbose --verbose --files=archive.tar

Then the output is as documented on that page.

Hope this helps,

derek

-- 
Ventis secundis, tene cursum.

dt at hawkmoon dot mn dot org
slash slash lastditch dot dyndns dot org

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