linux.gentoo.user

On 24 Feb 2008, at 19:46, Christopher Copeland wrote:
> On 24 Feb 2008, at 06:06, Stroller wrote:
>
>> So my question is:
>>
>> Is there any way to check the integrity of copied directories, to
>> be sure that none of the files or sub-directories in them have
>> become damaged during transfer? I'm thinking of something like
>> md5sum for directories.
>
> I use rsync for this and would suggest you look into it. You can
> tell it to compare files based on checksum (which is slower) and
> the real beauty is that if there is a file that is corrupt or
> otherwise not the same as the source it will copy just that single
> file to your backup disk. Test it by deleting a random file
> somewhere in the backup tree.. rerun your rsync command and the
> file is copied back.
>
> man rsync

Thanks. I think this has been suggested before for my backups - IIRC
it has a useful --ignore-path or --exclude-path command which can
insure you all the users' Documents & Settings, without the useless
temp & "Temporary Internet Files".

I've just tried `rsync- vrchi` on a pair of subdirectories ("My
Documents") of the backup I made last week and on those it seems run
in acceptable time. I got little output, however, so have deleted a
couple of files from the destination (I should perhaps write some
random data to another) and am running it again in anticipation of
some "copying /a/b/c/file /x/y/z/file" output.

I appreciate your help,

Stroller.
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