Mick writes:
> On Sunday 09 January 2011 21:11:02 Alex Schuster wrote:
>> Mick writes:
>>> I used:
>>> tar -X file.list -lcvSf - . | (cd /new_gentoo_partition; tar -xpvf - )
>>>
>>> to clone a gentoo / partition to another partition on the same disk (I
>>> want to run some tests from it).
>>>
>>> The file.list has this is in it:
>>>
>>> tmp/*
>>> proc/*
>>> sys/*
>>> dev/*
>>> etc/mtab
>>> usr/portage/distfiles/*
>>
>> Which also excludes /usr/include/sys, not only /sys. And so on. You
>> probably have to rewrite this as ./tmp/* , but I did not test this.
>>
>> And I just learnt that -l is no longer a synonym for --one-file-system,
>> at least for tar 1.25. I'd do it with a bind mount this:
>>
>> mount -o bind / /mnt
>> cd /mnt
>> tar -cvSf - . | (cd /new_gentoo_partition; tar -xpvf - )
>>
>> This way, the original /dev is being copied (including entries console
>> and null), without the udev stuff that is mounted on top of /dev, while
>> with --one-file-system only the empty /dev directory would be created.
>
> Thanks Wonko, it seems that I fell victim to my regex ignorance. I started
> with /tmp, but that would also exclude the directories and I didn't fancy
> creating them manually afterwards. Also dir/* does not include dir/.*
>
> What shall I use for excluding all the contents of a directory, but not the
> directory itself?
Actually it does, although this is wrong in my opinion. But maybe what
the user normally intends.
I created two directories sys/ and usr/include/sys/, with normal and
hidden files:
wo...@weird ~/tmp/tar $ ls -a . sys usr/include/sys
.:
. .. sys usr
sys:
. .. .hidden visible
usr/include/sys:
. .. .hidden.h visible.h
I tarred them as you did. Note that the hidden file is also excluded,
although I did not exclude sys/.*, too:
wo...@weird ~/tmp/tar $ tar cf ../foo.tar --exclude='sys/*' .
wo...@weird ~/tmp/tar $ tar tf ../foo.tar
./
./usr/
./usr/include/
./usr/include/sys/
./sys/
As suggested, I added a './' to the exclude file list and tarred the
directory. Seems to work:
wo...@weird ~/tmp/tar $ tar cf ../foo.tar --exclude='./sys/*' .
wo...@weird ~/tmp/tar $ tar tf ../foo.tar
./
./usr/
./usr/include/
./usr/include/sys/
./usr/include/sys/visible.h
./usr/include/sys/.hidden.h
./sys/
> What shall I use for excluding all the contents of a directory, but
> not the directory itself?
sed -i 's:^:./:g' file.list
Wonko
