backup/nightly.sh

   1 #!/bin/sh
   2 #
   3 #       Nightly script for backing up SMS.
   4 #
   5 #
   6 BKUPDIRDIR=/tmp
   7
   8 chdir ${BKUPDIRDIR}
   9
  10 if [ -d in_progress ]
  11 then
  12         echo "Two backups running?"
  13         exit 1
  14 fi
  15
  16 if mkdir in_progress
  17 then
  18         echo "Backup in progress."
  19 else
  20         echo "Cannot create backup directory"
  21         exit 1
  22 fi
  23
  24 if /u1/sms/backup/smsbackup ${BKUPDIRDIR}/in_progress/
  25 then
  26         echo "Backup successful"
  27 else
  28         echo "Backup failed!"
  29         exit 1
  30 fi
  31
  32 if [ -d stale ]
  33 then
  34         echo -n "Stale backup "
  35         rm -rf backup_4
  36         echo "removed"
  37 fi
  38 echo -n "Shifting backups "
  39
  40 mv backup_3 stale
  41 echo -n "3"
  42 mv backup_2 backup_3
  43 echo -n "2"
  44 mv backup_1 backup_2
  45 echo -n "1"
  46 mv in_progress backup_1
  47 echo
  48 echo -n "deleting last backup"
  49 rm -rf stale
  50 echo "New backup:"
  51 ls -l backup_1
  52 exit 0