Tar Exclude

Tar Exclude

[Paul Kraus]

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When running tar with the exclude set tar creates a 10k empty tar file.

I have a script that tars a all the sub directories of a directory into
individual tar files for each subdirectory. I have an exclude file that
is set to skip some of the folders I don't want tarred. This works but
it creates the empty tar files. Is this normal? Can it be set not to do
this?

Paul Kraus
Network Administrator
PEL Supply Company
216.267.5775 Voice
216-267-6176 Fax
www.pelsupply.com

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Re: Tar Exclude

[Mike Dresser]

On Wed, 13 Nov 2002, Paul Kraus wrote:

> When running tar with the exclude set tar creates a 10k empty tar file.
>
> I have a script that tars a all the sub directories of a directory into
> individual tar files for each subdirectory. I have an exclude file that
> is set to skip some of the folders I don't want tarred. This works but
> it creates the empty tar files. Is this normal? Can it be set not to do
> this?

How about showing us the line out of the script that calls tar, and a
sample of your exclude line.  Tar can be... tempermental when it comes to
exclude's.

Mike

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RE: Tar Exclude

[Paul Kraus]

Here is the script
------------------
 exceptions=/backup/scripts/archive.exclude
        dt=`date +%A`
        cd /backup
        for filestotar in `ls --almost-all --directory -x1 *`
        do
                tar --directory /backup/tar.archive \
                    --create --verbose  \
                    --exclude-from $exceptions \
                    --file /backup/tmp/$filestotar.$dt.tar \
                    /backup/$filestotar/* 1>
/backup/tmp/$filestotar.$dt.index
        done

-----Original Message-----
From: Mike Dresser [mailto:mdresser_l@windsormachine.com] 
Sent: Wednesday, November 13, 2002 10:22 AM
To: Paul Kraus
Cc: linux-newbie@vger.kernel.org
Subject: Re: Tar Exclude


On Wed, 13 Nov 2002, Paul Kraus wrote:

> When running tar with the exclude set tar creates a 10k empty tar 
> file.
>
> I have a script that tars a all the sub directories of a directory 
> into individual tar files for each subdirectory. I have an exclude 
> file that is set to skip some of the folders I don't want tarred. This

> works but it creates the empty tar files. Is this normal? Can it be 
> set not to do this?

How about showing us the line out of the script that calls tar, and a
sample of your exclude line.  Tar can be... tempermental when it comes
to exclude's.

Mike

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Re: Tar Exclude

[Steven Smith]

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> I have a script that tars a all the sub directories of a directory into
> individual tar files for each subdirectory. I have an exclude file that
> is set to skip some of the folders I don't want tarred. This works but
> it creates the empty tar files. Is this normal?
Yes.  It is, in fact, exactly what you've told tar to do: create
a tar file containg everything in directory foo, excluding files
in directory foo.  This gives us an empty tar file.

> Can it be set not to do this?
I can't see any immediately obvious way to stop tar making empty
files, but you could try a script like this:

tar --create ... # Whatever arguments you're currently using for tar.
[ `tar -tf foo.tar | wc -l` -eq 0 ] && rm foo.tar

replacing foo.tar with the filename of the generated tarball which
might be empty.  (The second line checks whether the tar file is
empty, and rm-s it if it is).

This isn't a terribly pleasant solution, but it should work.

Steven Smith,
sos22@cam.ac.uk.

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RE: Tar Exclude

[Paul Kraus]

Also I just noticed I get an error about removing leading / from member
names.

Here is my archive.exclude
/backup/advserver
/backup/logs
/backup/lost+found
/backup/scripts
/backup/tar.archive

-----Original Message-----
From: Paul Kraus [mailto:pkraus@pelsupply.com] 
Sent: Wednesday, November 13, 2002 10:26 AM
To: 'Mike Dresser'
Cc: 'linux-newbie@vger.kernel.org'
Subject: RE: Tar Exclude


Here is the script
------------------
 exceptions=/backup/scripts/archive.exclude
        dt=`date +%A`
        cd /backup
        for filestotar in `ls --almost-all --directory -x1 *`
        do
                tar --directory /backup/tar.archive \
                    --create --verbose  \
                    --exclude-from $exceptions \
                    --file /backup/tmp/$filestotar.$dt.tar \
                    /backup/$filestotar/* 1>
/backup/tmp/$filestotar.$dt.index
        done

-----Original Message-----
From: Mike Dresser [mailto:mdresser_l@windsormachine.com] 
Sent: Wednesday, November 13, 2002 10:22 AM
To: Paul Kraus
Cc: linux-newbie@vger.kernel.org
Subject: Re: Tar Exclude


On Wed, 13 Nov 2002, Paul Kraus wrote:

> When running tar with the exclude set tar creates a 10k empty tar
> file.
>
> I have a script that tars a all the sub directories of a directory
> into individual tar files for each subdirectory. I have an exclude 
> file that is set to skip some of the folders I don't want tarred. This

> works but it creates the empty tar files. Is this normal? Can it be 
> set not to do this?

How about showing us the line out of the script that calls tar, and a
sample of your exclude line.  Tar can be... tempermental when it comes
to exclude's.

Mike

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RE: Tar Exclude

[Mike Dresser]

On Wed, 13 Nov 2002, Paul Kraus wrote:

> Also I just noticed I get an error about removing leading / from member
> names.
>
> Here is my archive.exclude
> /backup/advserver
> /backup/logs
> /backup/lost+found
> /backup/scripts
> /backup/tar.archive
>

Try putting

backup/advserver
backup/logs
backup/lost+found
backup/scripts
backup/tar.archive

Instead

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RE: Tar Exclude

[dashielljt]

You want to have /proc in that exclude along with /tmp.

Jude <dashielljt@gmpexpress.net>


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RE: Tar Exclude

[Mike Dresser]

On Wed, 13 Nov 2002, Paul Kraus wrote:

> I removed /backup/ from all of them.
>
> Advserver
> Logs
> Ect.
>
> And like before it stills excludes them by not tarring there contents
> but it does create the 10k empty tar file.

Sorry, I got completely sidetracked with the idea of excludes not working,
when in fact they were in the first place

I don't know what the problem is, unfortunately.

Sorry,
Mike


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