nngoback man page on Slackware

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NNGOBACK(1)							   NNGOBACK(1)

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.

FILES
       ~/.newsrc	    The record of read articles.
       ~/.newsrc.goback	    The original rc file before goback.
       $db/active.N	    The N days `old' active file.
       $master/back_act	    Script run by cron to maintain old active files.

SEE ALSO
       nn(1), nncheck(1), nngrab(1), nngrep(1), nnpost(1), nntidy(1)
       nnadmin(1M), nnusage(1M), nnmaster(8)

NOTES
       nngoback does not check the age of the  `old'  active  files;  it  will
       blindly	believe	 that active.0 was created today, and that active.7 is
       really seven days old!  Therefore, the back_act script  should  be  run
       once and only once every day for nngoback to work properly.

       The days are counted relative to the time the active files were copied.

AUTHOR
       Kim F. Storm, Texas Instruments A/S, Denmark
       E-mail: storm@texas.dk

4th Berkeley Distribution	  Release 6.6			   NNGOBACK(1)
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