====== Backup Scripts ======


  #!/bin/sh
  # filename: backup.sh
  # location: /root/backup/backup.sh
  # modified : Andrew Stringer 25/04/2004 onwards
  # modified : AJS 21/11/06 to backup files to nfs mounted directory
  
  #my name
  HOST='ns0'
  BACKUPLIST='/etc/backup/backuplist.txt'
  MAILRESULT='an.st@xxx.gov.uk'
  BACKUPHOST='10.1.1.1'
  BACKUPHOSTPATH='/vol/dnsbackup'
  LOCALWRKDIR='/tmp/dnsbackup'
  MOUNTPATH='/mnt/dnsbackup'
  LOGFILE="/root/log.txt"
  
  
  
  #set file to just day number, this will create up to 31 unique 
  #backup files and allow overwriting to stop files getting too many
  DATE=`date +%d`
  #today is in format 01-01-2006 
  TODAY=`date +%d-%m-%Y`
  
  
  #Check if remote file system is mounted
  printf "%s\n" "Checking if nfs is mounted"
  if  mount|grep ${BACKUPHOSTPATH} >/dev/null 2>&1
  then
          printf "\t%s\n" "${BACKUPHOSTPATH} mounted"
  else
          printf "\t%s\n" "${BACKUPHOSTPATH} not mounted, trying to mount"
          mount ${BACKUPHOST}:${BACKUPHOSTPATH} ${MOUNTPATH}
  
  #check mount, bale out if not.
  if  mount|grep dnsbackup >/dev/null 2>&1
  then
          printf "\t%s\n" "${BACKUPHOSTPATH} mounted"
  else
  #mail error
  	printf "\t%s\n" "Still not mounted, sending mail & baling out."
  	echo "Unable to mount nfs directory." |mailx  -r "backup" -s "ns0.brm.pri - unable to mount dnsbackup, ${TODAY}" ${MAILRESULT}
  	exit 1
  fi
  fi
  
  
  #check if backup location exists, as it is on tmpfs it will be destroyed
  #each server reboot
  if [ -d ${LOCALWRKDIR} ]; then
          printf "\t%s\n" "${LOCALWRKDIR} exists"
  else
          printf "\t%s\n" "${LOCALWRKDIR} does not exist, creating"
          mkdir ${LOCALWRKDIR}
  fi
  
  
  
  #remove previous backup
  printf "%s" "Remove old backup from local server"
  rm ${LOCALWRKDIR}/* >/dev/null 2>&1
  printf "%s\n" "....Done"
  
  
  printf "%s" "Start tar of files"
  tar cvf ${LOCALWRKDIR}/backup.tar `cat ${BACKUPLIST}` > ${LOGFILE} 2>&1
  printf "%s\n" "....Done"
  printf "%s\n" "tar file is `du -h ${LOCALWRKDIR}/*`"
  
  #gzip file
  printf "%s" "gzip'ing tar file"
  gzip ${LOCALWRKDIR}/backup.tar
  printf "%s\n" "....Done"
  printf "%s\n" "gzipped file is `du -h ${LOCALWRKDIR}/*`"
  
  #copy file to todays date
  printf "%s" "Appending date"
  mv ${LOCALWRKDIR}/backup.tar.gz ${LOCALWRKDIR}/backup-${HOST}-${DATE}.tar.gz
  printf "%s\n" "....Done"
  
  #move backed up file to nfs mount
  printf "%s" "Moving file to remote host"
  mv ${LOCALWRKDIR}/backup-${HOST}-${DATE}.tar.gz ${MOUNTPATH}/${HOST}
  printf "%s\n" "....Done"
  printf "%s\n" "Remote file is `du -h  ${MOUNTPATH}/${HOST}/*`"
  
  #send confirmation
  printf "%s" "Sending mail confirmation"
  echo "Backup successful." | mailx -r "backup" -s "$HOST - Backup Success ${TODAY}" ${MAILRESULT}
  printf "%s\n" "....Done"
  
  #umount nfs directory
  printf "%s" "umount'ing nfs directory"
  umount ${BACKUPHOST}:${BACKUPHOSTPATH}
  printf "%s\n" "....Done"
  
  
  exit 0