Backup Script

Robert Davison rob_27_preston at
Sat Mar 3 09:06:33 UTC 2007

Im trying to write a small backup script which I have put in /etc/periodic/weekly. The script is as follows......
#weekly backup of chosen files
        tar -cf /dev/sa0 /var/ftp /home /etc /usr/local
        echo "backing up the disks"
        echo "There was a problem" 1>&2
        exit 1
  echo "Finished at `/bin/date`."

  Now I have no experience at bash scripting as was wonderng if someone could give me some help with the if statement. Basically im trying to test to see if the machine knows that /dev/sa0 (my tape drive) is accessable. If it is then it continus to the backup, if not then it gives the error message and echos the date.
  Any help would be much appreciated.

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