Server Backup Script

#!/bin/bash

host="root@example"
date="$(date +%Y-%m-%d_%H-%M)"

for d in $(zfs list -o mountpoint); do
  if [ $d = "MOUNTPOINT" ]; then continue; fi # skip table head
  from="$from $d"
done

while true; do
  rsync -avz --progress --relative $from $host:/backup
  if [ $? == 0 ]; then break; fi
  echo $(date +%Y-%m-%d_%H-%M) retrying >> backup_log
  sleep 10
done

ssh $host \""zfs snapshot backup@$date"\"