The .xz file format is a LZMA2 based compression format. There are no archiving capabilities so .xz files only hold one compressed file.

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36 views

file splitting and compression in pipeline

So I have a massive file something like this... 1/20/2016,somerandomdata 1/20/2016,somerandomdata 1/20/2016,somerandomdata 1/20/2016,somerandomdata 1/21/2016,somerandomdata 1/21/2016,somerandomdata 1/...
3
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1answer
19 views

run program in background

Is it possible to run a program e.g. xz in the background so it wouldnt suck all the resources?
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36 views

Why am I encountering 'Error decoding stream footer' when decompressing using `pixz`?

I compressed a file using tar -pcv input_dir | pixz 8 -p8 > output.tar.xz. When I try to decompress or list the files using pixz -d and pixz -l i encounter the error Error decoding stream footer. ...
0
votes
1answer
1k views

Yum: xz compression not available on Fedora 12

I am currently in the process of updating an old Fedora server, and am currently on Fedora 12. on the last update I forgot to upgrade rpm (see here). Now yum always returns this error: Error: xz ...
1
vote
1answer
604 views

Difference between pixz and xz with -T option

I'm trying to compress a 100GB with a good ratio, so I decided to use xz. I don't need it to be very fast, but since I have an 8-threads CPU, I was wondering how to take advantage of them. I found ...
0
votes
1answer
54 views

Does specifying the compression engine to tar directly actually use less intermediate disk space than tarring first and then compressing?

When I use tar to archive a directory and then compress it separately using e.g. xz, there will be a point where I have three files on my system - dir, dir.tar and dir.tar.xz. As soon as the ...
10
votes
2answers
8k views

Cannot decompress .tar.xz file, getting “xz: Cannot exec: No such file or directory” from tar

Per How do I uncompress a tarball that uses .xz?, I tried tar xf php-5.6.0RC4.tar.xz and tar -xJf php-5.6.0RC4.tar.xz and in both cases I get the following: tar (child): xz: Cannot exec: No such file ...
12
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3answers
1k views

Compressing many similar big files

I have hundreds of similar big files (30 megabyte each) which I want to compress. Every pair of files have 99% of same data (less then 1% difference), so I expect to have not more than 40-50 megabyte ...
3
votes
1answer
1k views

How do I safely convert a .gz file to a .xz file

I have some huge files that are currently gzipped and I would like to xz them. I want set up a script to do this, but I want to be careful not to lose the data, i.e. I should never delete the gzipped ...
1
vote
0answers
891 views

Can I fix this TAR+XZ file?

I'm doing some file recovery on an old hard drive, using the most recent stable PhotoRec. After finding a lot of files that I wanted to keep, I decided to make some of them (meaning over 700) easier ...
10
votes
3answers
7k views

Between xz, gzip, and bzip2, which compression algorithim is the most efficient?

Between xz, gzip, and bzip2, which compression algorithm gives the smallest file size and fastest speed when compressing fairly large tarballs?
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2answers
124 views

xz archive opens in linux, corrupted in windows [closed]

I have some xz archives (that were created in Linux), I can decompress them fine in linux but I'm trying to open them in Windows (7). I've used both 7zip and ExtractNow. In both cases the archive ...
4
votes
2answers
764 views

How can I have `less` automatically decompress `xz` files like it did with `gz` files on my old SUSE distro?

On my old SUSE distro, less would automatically decompress .gz files. That came in very convenient when listing auto-compressed /var/log/mail*.gz files. The current version of SUSE now archives /var/...