#!/bin/bash
################################################################################
#
# File:         $RCSfile: backup,v $
# Revision:	$Revision: 1.7 $
# Description:  This script backs up the system in a consistent way
# Author:       Andrew@DeFaria.com
# Created:      Tue Jul 27 15:00:11 PDT 2004
# Modified:     $Date: 2011/05/26 06:17:20 $
# Language:     Bash
#
# (c) Copyright 2000-2005, ClearSCM, Inc., all rights reserved.
#
################################################################################
# Full Backup
backup=/sbin/dump
dumppath=/backup
filesystems="sda1 sdb1"
compression=9

if [ -f /etc/dump.excludes ]; then
  excludes="-E /etc/dump.excludes"
else
  excludes=""
fi

if [ $(id -u) -ne 0 ]; then
  echo "You must be root to backup"
  exit 1
fi

function usage {
  type="$1"

  echo "Usage: backup <full | incremental>"
  exit 1
} # usage

type="$1"
host=$(hostname)

if [ "$type" = "full" ]; then
  rm -f $dumppath/$host.*.$type.backup
  rm -f $dumppath/$host.*.$type.backup.log
  rm -f $dumppath/$host.*.$type.list  
  level=0
elif [ "$type" = "incremental" ]; then
  level=1
else
  usage $type
fi

for fs in $filesystems; do
  log=$dumppath/$host.$fs.$type.backup.log
  $backup -$level\
    -A $dumppath/$host.$fs.$type.list\
    -f $dumppath/$host.$fs.$type.backup\
    -z$compression\
    $excludes\
    -u /dev/$fs > $log 2>&1 
done