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Unix System Administration Handbook 1997 October
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news
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nn.tar
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nn-6.5.1
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back_act.sh
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1995-04-29
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606b
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34 lines
# prefix is inserted above by make
#
# back_act will maintain a set of `old' active files
# in the DB directory where they can be used by nngoback
# to backtrack the rc file a number of days.
#
# It should be invoked by cron every day at midnight.
# It should run as user `news'!
#
# Call: back_act [days]
# Default: keep copy of active file for the last 14 days.
cd $DB || exit 1
p=${1-15}
l=""
while [ "$p" -gt 0 ]
do
i="`expr $p - 1`"
if [ -f active.$i ]
then
mv active.$i active.$p
l=$p
elif [ -n "$l" ]
then
ln active.$l active.$p
fi
p=$i
done
cp $ACTIVE active.0
chmod 644 active.0