!/bin/sh

TIMESTAMP=date "+%Y-%m-%dT%H-%M-%S"
USER=user
SOURCEDIR=/var/data/backups
TARGETDIR=/var/redundancy

Create new backup using rsync and output to log

rsync -avPh --delete --link-dest=$TARGETDIR/current $SOURCEDIR/$USER/ $TARGETDIR/$USER-$TIMESTAMP > /var/log/rsync/$TIMESTAMP.log 2>&1

check exit status to see if backup failed

if [ "$?" = 0 ]; then

Remove link to current backup

rm -f $TARGETDIR/current
# Create link to the newest backup
ln -s $TARGETDIR/$USER-$TIMESTAMP $TARGETDIR/current

else

Rename directory if failed

mv $TARGETDIR/$USER-$TIMESTAMP $TARGETDIR/failed-$USER-$TIMESTAMP

fi