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Backing Up to a Compressed Archive on Linux

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http://unix.stackexchange.com – How would you go about backing up just some files and subdirectories of a given directory to a compressed archive so that the tree structure could then easily be recreated from that archive. Basically, rsync, with a little bit of scripting around (to select the files and folders I need) does the job, except I don't want to just copy. I need an additional layer that compresses the files being rsynced into some kind of compressed archive (which could then be restored with the paths being recreated). Rsync doesn't necessarily have to be part of the solution. E.g., can I mount an archive on so (HowTos)

Songlist's picture
Submitted by Songlist on 09/21/2012

Stories similar to Backing Up to a Compressed Archive on Linux

From my tests so far on OSX 10.8 and CentOS 5.5, it looks like tar automatically deduces the compression type of an archive, i.e., I could do tar -xf <compressed archive> instead of doing tar -jxf <bzip2 compressed archive> or tar -zxf <gzip compressed archive>.

I would like to know if I can depend on this automatic compression detection feature of tar, or is this feature new?

How can I ensure the folder that I tar and compress is good to be archive in DVD or tape? Must I uncompress and untar the file, or there is any way to tell the integerity of the compressed file before send to archive? I have bad experience on this, which the archive compressed file cold not be opened, the error message is unexpected EOF. I guess it could be incomplete archive process.

Free Arc : How to get GUI 2 years 27 weeks ago

I have just installed Free Arc utility for compression from : http://www.freearc.org/Download.aspx

and it works smoothly but in command Line mode.

Commands: a add files to archive c add comment to archive ch modify archive (recompress, encrypt and so on) create create new archive cw write archive comment to file d delete files from archive e

I have to handle files that come as uncompressed text files or in various archive types (.gz, .zip, .tar.gz, bz2...). I want to process their content piped to another command. Is there a tool that detects whether a file is compressed and prints it content uncompressed? The best I could find is a combination of zcat (some archive types) and cat (non-compressed files).

Howdy,

So what I am looking to do is combine an archive and a script file.

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I was taking a backup of a folder, where I used the following command :

sudo tar -zcvf www.tar.gz /var/www/

It successfully compressed, just for verifying the number of files in the compressed archive, and the directory I ran the following commands :

sudo tar -ztvf www.tar.gz | wc -l -> 186364

ls -R /var/www | wc -l -> 196440

How come the count is different, what am I missing ?

I have the followin directory structure:

base/ files/ archives/ scripts/

I want a script to run from scripts/, compress files that match results.*.log in files/ into a gzipped tar archive in archives/.

I'm trying the following command:

tar czfC ../archives/archive.tar.gz ../files results.*.log

But I get

tar: results.*.log: Cannot stat: No such file or directory tar: Exiting with f