#!/bin/sh
#
# zfs snapshot ½ºÅ©¸³Æ®
# - list(Á¶È¸), create(»ý¼º), status(»ó¼¼ ¼Ó¼º)
#
# 2010.6.18(±Ý)
# by ÁÁÀºÁøÈ£(truefeel, http://coffeenix.net/ )

PATH=$PATH:/sbin

case "$1" in
  # snapshot ¸ñ·Ï
  "list" )
	zfs list -o name,used,referenced,creation -t snapshot
	;;
  # snapshot ¸¸µé±â
  "create" )
	DATE=`date +'%Y_%m%d_%H%M_%a'`

	if [ "$2" = "" ]; then
		echo "Usage: $0 $1 <filesystem name>"
		echo "Exam:  $0 $1 data/log"
		echo
		zfs list
		exit 1
	fi
	zfs snapshot -r data/log@$DATE 
	;;
  # snapshot »ó¼¼ ¼Ó¼º Á¶È¸
  "status" )
	if [ "$2" = "" ]; then
		$0 list
		echo
		echo "Usage: $0 $1 <snapshot name>"
		exit 1
	fi
	zfs get all $2
	;;
  *)
	echo "Usage: $0 {list|create|status}"
	exit 1
esac