nngoback will rewind the .newsrc record file of nn(1) one or more days.
It can be used to rewind all groups, or only a specified set of
In other words, nngoback can mark news articles which have
arrived on the system during the last days days unread.
Only subscribed groups that occur in the current presentation
sequence are rewound. That means that if no group arguments are
specified, all groups occurring in the sequence defined in the
init file will be rewound. Otherwise, only the groups specified
on the argument line will be rewound.
When a group is rewound, the information about selections, partially
read digests etc. are discarded. It will print notifications about
this unless the -Q (quiet) option is used.
If the -i (interactive) option is specified, nngoback
will report for each how many articles can be marked unread, and
ask for confirmation before going back in that group.
If the -v (verbose) option is specified, nngoback will
report how many articles are marked unread.
If the -N (no-update) option is specified, nngoback will
perform the entire goback operation, but not update the .newsrc file.
If you are not up-to-date with your news reading, you can also use
nngoback to catch up to only have the last few days of news
waiting to be read in the following way:
The nn command will mark all articles in all groups as read (answer
all to the catch-up question.) The following nngoback will then make
the last three days of news unread again.
You cannot go more than 14 days back with nngoback.
(You can change this limit as described below.)
Mark the articles which have arrived today as unread.
Mark the articles which have arrived yesterday and today as unread.
Mark the articles which have arrived during the last week as unread.