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Full Discussion: Tar gzip compression rate
Top Forums UNIX for Advanced & Expert Users Tar gzip compression rate Post 303038987 by cokedude on Thursday 19th of September 2019 02:31:45 AM
Old 09-19-2019
Tar gzip compression rate

How good is the compression rate of gzip when you use tar with the gzip option? I am pretty amazed that a 1 GB file was reduced to 1019K. This is what I did.

Code:
tar -cvf tar_test.tar.gz -T /list_of_files
ls -hl
-rw-r-----. 1 owner group    19 Jul 23 16:00 list_of_files
-rw-r-----. 1 owner group 1019K Sep 19 02:17 tar_test.tar.gz

This User Gave Thanks to cokedude For This Post:
 

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bup-join(1)						      General Commands Manual						       bup-join(1)

NAME
bup-join - concatenate files from a bup repository SYNOPSIS
bup join [-r host:path] [refs or hashes...] DESCRIPTION
bup join is roughly the opposite operation to bup-split(1). You can use it to retrieve the contents of a file from a local or remote bup repository. The supplied list of refs or hashes can be in any format accepted by git(1), including branch names, commit ids, tree ids, or blob ids. If no refs or hashes are given on the command line, bup join reads them from stdin instead. OPTIONS
-r, --remote=host:path Retrieves objects from the given remote repository instead of the local one. path may be blank, in which case the default remote repository is used. The connection to the remote server is made with SSH. If you'd like to specify which port, user or private key to use for the SSH connection, we recommend you use the ~/.ssh/config file. EXAMPLE
# split and then rejoin a file using its tree id TREE=$(tar -cvf - /etc | bup split -t) bup join $TREE | tar -tf - # make two backups, then get the second-most-recent. # mybackup~1 is git(1) notation for the second most # recent commit on the branch named mybackup. tar -cvf - /etc | bup split -n mybackup tar -cvf - /etc | bup split -n mybackup bup join mybackup~1 | tar -tf - SEE ALSO
bup-split(1), bup-save(1), ssh_config(5) BUP
Part of the bup(1) suite. AUTHORS
Avery Pennarun <apenwarr@gmail.com>. Bup unknown- bup-join(1)
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