Save the job in /root/
Change:
–exclude home.rsync.log
to:
–exclude=*.rsync.log
# Long listing of files in $dest to check file sizes.
ls -lh $DEST
crontab -e
# m h dom mon dow command
0 4 1,16 * * /root/all.backup.sh ## run @ 4AM on the 1st and 16th of every month