#!/bin/sh

pool="tank/vol2"
destination="tank"
host="192.168.113.2"

today=`date +"$type%Y-%m-%d"`
yesterday=`date -v -1d +"$type%Y-%m-%d"`

# create today snapshot
snapshot_today="$pool@$today"
# look for a snapshot with this name
if zfs list -H -o name -t snapshot | sort | grep "$snapshot_today$" > /dev/null; then
        echo " snapshot, $snapshot_today, already exists"
        exit 1
else
        echo " taking todays snapshot, $snapshot_today"
        zfs snapshot -r $snapshot_today
fi

# look for yesterday snapshot
#snapshot_yesterday="$pool@$yesterday"