nngoback - Online in the Cloud

PROGRAM:

NAME

nngoback - make news articles unread on a day-by-day basis (nn)

SYNOPSIS

nngoback [ -NQvi ] [-d] days [ group ]...

DESCRIPTION

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 groups. 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:
nn -a0
nngoback 3
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.

Examples:

nngoback 0
Mark the articles which have arrived today as unread.

nngoback 1
Mark the articles which have arrived yesterday and today as unread.

nngoback 6
Mark the articles which have arrived during the last week as unread.

You cannot go more than 14 days back with nngoback. (You can change this limit as
described below.)

THE BACK_ACT DAEMON

It is a prerequisite for the use of nngoback that the script back_act is executed at an
appropriate time once (and only once) every day. Preferably this is done by cron right
before the bacth of news for `today' is received. back_act will maintain copies of the
active file for the last 14 days.

Optionally, the back_act program accepts a single numerical argument specifying how many
copies of the active file it should maintain. This is useful if news is expired after 7
days, in which case keeping more than 7 days of active file copies is wasteful.

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