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# 1  
Old 04-02-2014
Tar Command Help

Is it possible to untar a file so it's size reduces while it uncompresses its contents. I have limited space on my mount point and was wondering if we can untar as a stream in other words the size of tarball reduces as it uncompresses the contents.

Thanks
# 2  
Old 04-02-2014
Not that I know of... But what is stopping to leave/put to tar file in a different filesystem?
# 3  
Old 04-02-2014
No space on any other filesystem on this host to hold the tarfile.

Thanks
# 4  
Old 04-02-2014
Time to do some cleaning up then... If its that full you are living dangerously...
# 5  
Old 04-02-2014
Code:
<file.tar.gz gunzip -c | tar xvf -

The gunzip reads from stdin, that is directed from file.tar.gz.
It also can read from a pipe:
Code:
ssh -qnx remotehost cat file.tar.gz | gunzip -c | tar xvf -

Without compression:
Code:
ssh -qnx remotehost cat file.tar | tar xvf -

# 6  
Old 04-02-2014
You want to purge the files from the tar as they're extracted?

You could try listing the files in the tar, then extracting & deleting each one in turn. Something like:
Code:
filelist=$(tar -tvf archive.tar)
for file in $filelist
do
   tar -xf archive.tar "$file"
   tar --delete -f archive.tar "$file"
done

(untested, assuming GNU tar)
This User Gave Thanks to CarloM For This Post:
 

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