Editing a compressed tar..

iuselinux · 03-14-2011, 11:01 AM

Hey guys, so Basically... think of this directory as the current structure..

Quote:

.
|-- test
| `-- test1
`-- test.tar

test.tar is a compressed tar of /test/ (cvfz), now... I need to add another file called test2 to test.tar, WITHIN the test directory in the tar. Is this possible?

Right now, tvf results to this..

Quote:

drwxr-xr-x ######/###### 0 2011-03-14 08:52 test/
-rw-r--r-- ######/###### 0 2011-03-14 08:52 test/test1

When this is done, I want it to look like this..

Quote:

drwxr-xr-x ######/###### 0 2011-03-14 08:52 test/
-rw-r--r-- ######/###### 0 2011-03-14 08:52 test/test1
-rw-r--r-- ######/###### 0 2011-03-14 08:52 test/test2

Anyway to do this without having to recompress the files again?..

Nylex · 03-14-2011, 11:05 AM

The man page for tar suggests using the -r option, e.g.

$ tar -r test/test2 -f test.tar

Edit: misread the question. This doesn't seem to work for compressed archives.

Why do you specifically need to not have to just recreate the compressed archive again with the new file(s)?

iuselinux · 03-14-2011, 11:13 AM

Quote:

Originally Posted by Nylex

The man page for tar suggests using the -r option, e.g.

$ tar -r test/test2 -f test.tar

Edit: misread the question. This doesn't seem to work for compressed archives.

Why do you specifically need to not have to just recreate the compressed archive again with the new file(s)?

There are 78 compressed tar's, all about 6gb in size..

iuselinux · 03-14-2011, 11:15 AM

Any way to uncompress without extracting?..

SL00b · 03-14-2011, 11:17 AM

Quote:

Originally Posted by Nylex

The man page for tar suggests using the -r option, e.g.

$ tar -r test/test2 -f test.tar

Edit: misread the question. This doesn't seem to work for compressed archives.

It should work if you pass it through the same compression utility, which was given above as gzip.

$ tar -rz test/test2 -f test.tar

iuselinux · 03-14-2011, 11:28 AM

Quote:

Originally Posted by SL00b

It should work if you pass it through the same compression utility, which was given above as gzip.

$ tar -rz test/test2 -f test.tar

Negative...

This works, but it sucks..

1) for i in `ls`; do mv $i $i.gz; done # gunzip wont work on files that dont end in .gz, or so it seems

2) gunzip * # Make them uncompressed tar files

3) tar -r test/test2 -f test.tar # add it

3) gzip * # compress

fml, thats gonna take forever