Copy and compress

here2learn · #1 (**permalink**) 11-28-2005

Is there a way to copy a file and compress it at the same time?

I realize the file can be copied and then compressed, but I was wondering if it's possible to do it in a one-line command and for that matter, if it would be more efficient to perform the operation with a one-line command?

Thanks.

jyoung · #2 (**permalink**) 11-28-2005

Maybe this link will help:
Backup single large file

here2learn · #3 (**permalink**) 11-29-2005

Thanks JYOUNG. That allowed me to accomplish the task albeit not with a one-line command.

It appears that copying & gzipping thru a pipe isn't any faster than copying, gzipping & moving a 120MB file.

Guess I'll stick w/ the non-PIPE procedure.

Ygor · #4 (**permalink**) 11-29-2005

Not sure that you need a pipe, perhaps try...

Code:

gzip < /path/to/file1 > /path/to/file1.gz

here2learn · #5 (**permalink**) 11-30-2005

That's what I was looking for !! MAN, for the life of me, I can't believe I didn't remember that option. Bet I won't forget it next time.

It seems the the times are approximately the same for all three methods, however Ygor's method does provide the one-line code I was looking for and prevents having to remove any named-pipe.

Thanks Ygor !!

ezjay · #6 (**permalink**) 03-08-2009

To compress:

Code:

tar cf - <space_separated_list_of_files/folders> | gzip -c - > <path>/<archive_name>.tar.gz

To uncompress:

cd to the directory you want the files extracted in and run:

Code:

gunzip -c <path>/<archive_name>.tar.gz | tar xf -

(On Solaris, be sure to add the option E to the tar creation command arguments. i.e. tar cEf ...)

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