Avatar of Link
Link
Flag for United States of America asked on

How to uncompress

Basically, I want to extract
1.  tar file from sysdump.tar.gz............(gzip -d sysdump.tar.gz)
2.  extract all the tgz and other files from sysdump.tar from step 1 keeping destination folders .....................(tar xvf sysdump.tar)
3.  from sysdump folder extract files from each of the 13 tgz files created from above step 2, again keeping dest folders. Here is where I get into trouble. I changed directory to sysdump and  tried
for i in *
> do
> gunzip *.tgz | tar xvf $i
> done

I got all sorts of messages with:

"xxx.tar file already exists; do you wish to overwrite (y or n)? tar: tape blocksize error
tar: directory checksum error"

basically repeating itself, and not stopping for each y or n.

The loop I created was from my old notes from Unix and it's not working very well in this Linux environment. Can I get an expert to help me out to recursively extract all the tgz  and gz zipped files keeping the original destination directories (and hang with me till it works?)

Thanks
Linux

Avatar of undefined
Last Comment
Gerwin Jansen

8/22/2022 - Mon
Andy S

The command you're after is:
             tar zxvf sysdump.tar.gz
(That will uncompress it into the current directory..)

Or if you want it somewhere else, add -C with the destination path after, i.e.
             tar zxvf sysdump.tar.gz -C /desination/path

Cheers!
Gerwin Jansen

So you have a sysdump.tar.gz that is containing 13 tgz files, right?

Try this:

gunzip sysdump.tar.gz
tar xf sysdump.tar
for a in *.tgz
do
  tar zxf $a
done;
Link

ASKER
On my system I can't use the z option on a .tgz file:

$ for a in *.tgz
> do
> tar zxf $a
> done
tar: z: unknown function modifier
Usage: tar {c|r|t|u|x}[BDeEFhilmnopPqvw@[0-7]][bfk][X...] [blocksize] [tarfile] [size] [exclude-file...] {file | -I include-file | -C directory file}...
tar: z: unknown function modifier
Usage: tar {c|r|t|u|x}[BDeEFhilmnopPqvw@[0-7]][bfk][X...] [blocksize] [tarfile] [size] [exclude-file...] {file | -I include-file | -C directory file}...
tar: z: unknown function modifier
Usage: tar {c|r|t|u|x}[BDeEFhilmnopPqvw@[0-7]][bfk][X...] [blocksize] [tarfile] [size] [exclude-file...] {file | -I include-file | -C directory file}...
tar: z: unknown function modifier
Usage: tar {c|r|t|u|x}[BDeEFhilmnopPqvw@[0-7]][bfk][X...] [blocksize] [tarfile] [size] [exclude-file...] {file | -I include-file | -C directory file}...
tar: z: unknown function modifier
Usage: tar {c|r|t|u|x}[BDeEFhilmnopPqvw@[0-7]][bfk][X...] [blocksize] [tarfile] [size] [exclude-file...] {file | -I include-file | -C directory file}...
tar: z: unknown function modifier
Usage: tar {c|r|t|u|x}[BDeEFhilmnopPqvw@[0-7]][bfk][X...] [blocksize] [tarfile] [size] [exclude-file...] {file | -I include-file | -C directory file}...
tar: z: unknown function modifier
Usage: tar {c|r|t|u|x}[BDeEFhilmnopPqvw@[0-7]][bfk][X...] [blocksize] [tarfile] [size] [exclude-file...] {file | -I include-file | -C directory file}...
tar: z: unknown function modifier
Usage: tar {c|r|t|u|x}[BDeEFhilmnopPqvw@[0-7]][bfk][X...] [blocksize] [tarfile] [size] [exclude-file...] {file | -I include-file | -C directory file}...
tar: z: unknown function modifier
Usage: tar {c|r|t|u|x}[BDeEFhilmnopPqvw@[0-7]][bfk][X...] [blocksize] [tarfile] [size] [exclude-file...] {file | -I include-file | -C directory file}...
tar: z: unknown function modifier
Usage: tar {c|r|t|u|x}[BDeEFhilmnopPqvw@[0-7]][bfk][X...] [blocksize] [tarfile] [size] [exclude-file...] {file | -I include-file | -C directory file}...
tar: z: unknown function modifier
Usage: tar {c|r|t|u|x}[BDeEFhilmnopPqvw@[0-7]][bfk][X...] [blocksize] [tarfile] [size] [exclude-file...] {file | -I include-file | -C directory file}...
tar: z: unknown function modifier
Usage: tar {c|r|t|u|x}[BDeEFhilmnopPqvw@[0-7]][bfk][X...] [blocksize] [tarfile] [size] [exclude-file...] {file | -I include-file | -C directory file}...
tar: z: unknown function modifier
Usage: tar {c|r|t|u|x}[BDeEFhilmnopPqvw@[0-7]][bfk][X...] [blocksize] [tarfile] [size] [exclude-file...] {file | -I include-file | -C directory file}...
$


If I gunzip first:

$ gzip -d *.tgz

then try xvf (not zxf)

$  for a in *.tar
> do
> tar xvf $a
> done

Then it works.
Your help has saved me hundreds of hours of internet surfing.
fblack61
ASKER CERTIFIED SOLUTION
Gerwin Jansen

THIS SOLUTION ONLY AVAILABLE TO MEMBERS.
View this solution by signing up for a free trial.
Members can start a 7-Day free trial and enjoy unlimited access to the platform.
See Pricing Options
Start Free Trial
GET A PERSONALIZED SOLUTION
Ask your own question & get feedback from real experts
Find out why thousands trust the EE community with their toughest problems.