tarsnap script

tarsnap.sh

#!/bin/sh

PATH=/usr/local/bin:$PATH

PREFIX=`hostname -s`
format=%Y%m%d
DATE=`date +$format`

echo "Creating ${PREFIX}_$DATE"
tarsnap -cf ${PREFIX}_$DATE --quiet -X `dirname $0`/tarsnap-exclude /

# Delete old archives
ARCHIVES=`sudo tarsnap --list-archives | grep $PREFIX | awk 'BEGIN { FS="_" }; {print $2}' | sort`
OLDEST=`date -jf $format -v-7d $DATE +$format`

for archive in $ARCHIVES
do
  if [ $archive -lt $OLDEST ] && [ $archive -ne `date -jf $format -v1d $archive +$format` ]
  then
    echo "Deleting ${PREFIX}_$archive"
    tarsnap -df ${PREFIX}_$archive
  fi
done