Re: [Dump-users] Imcremental Backups

[Keith G. Robertson-T. <dum...@sl...>]

Verily I say unto thee, that Keith G. Robertson-Turner spake thusly:

I shouldn't write these scripts late at night :)

I just realised that "next_set" will be undefined (below) if "level" is
anything other than 6.

> #!/bin/bash
> 
> # /mnt/backup must be available and defined in /etc/fstab
> mount /mnt/backup
> 
> mypc=$(hostname)
> backup_path="/mnt/backup/${mypc}/sets"
> 
> mkdir -p "${backup_path}"/{1,2}/dumps/{0,1,2,3,4,5,6}
> 
> if [ ! -e "${backup_path}/current" ]
>    then
>       echo 1 > "${backup_path}/current"
> fi
> 
> level=$(expr $(date +%u) - 1)
> 
> read current_set < "${backup_path}/current"
> if [ $level -eq 6 ]
>    then
>       if [ $current_set -eq 1 ]
>          then
>             next_set=2
>          else
>             next_set=1
>       fi
### correction
     else
        next_set=$current_set
> fi
> 
> uid=$(date +%Y%m%d)
> 
> dump -${level}u -z \
>  -f "${backup_path}/${current_set}/dumps/${level}/${mypc}-${uid}.dump" /
> 
> rm -f "${backup_path}/current"
> echo $next_set > "${backup_path}/current"
> 
> umount /mnt/backup
> 
> exit 0
> ###

It could probably do with some more error checking too.

-- 
Regards,
Keith G. Robertson-Turner