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Shell Programming and Scripting

Retaining tar.gz after gunzip

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# 1  
Old 02-26-2007
Retaining tar.gz after gunzip
gunzip fnam.tar.gz
After this command execution... .gz file no longer exists... and only fnam.tar is present.

Is it possible to retain the tar.gz file after after using the above command

thx in advance.
# 2  
Old 02-26-2007
In other words, you want to run gunzip on abc.tar.gz and after the command is complete, you want both abc.tar and abc.tar.gz available?

Do this:
Code:
gzip -dc abc.tar.gz > abc.tar

Note that gzip -d is the same as gunzip. If you run gunzip just run gunzip -c. Check the man page to see what the -c switch does.
# 3  
Old 02-26-2007
Code:
gzcat fnam.tar.gz | tar xf -

will extract AND retain the file, or

Code:
gzcat fnam.tar.gz > fnam.tar

will gunzip it without removing the compressed version.

(gzcat = gzip -dc )
# 4  
Old 02-26-2007
thank you very much for the quick responses... my prob solved.
finally ended up using
gzcat fnam.tar.gz | tar xf -
# 5  
Old 02-26-2007
You can also do the below while unzipping

gzip -dc <filename>| cat - >$(basename <filename>'.gz')

For eg.
gzip -dc new.gz | cat - >$(basename new.gz '.gz')
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