今天拿到一个包，后缀名为：xz

经查询，用xz-utils中的xz命令可以对其进行解压。

在Ubuntu-11.04下面进行如下操作：

# aptitude search xz

得如下结果：

p xz-lzma - XZ-format compression utilities - compatibility commands

p xz-utils - XZ-format compression utilities

p xzdec - XZ-format compression utilities - tiny decompressors

p xzgv - Picture viewer for X with a thumbnail-based selector

p xzip - Interpreter of Infocom-format story-files

p xzoom - magnify part of X display, with real-time updates

于是安装xz-utils

# sudo apt-get install xz-utils

完成后，查看帮助：

# xz --help

Usage: xz [OPTION]... [FILE]...

Compress or decompress FILEs in the .xz format.

-z, --compress force compression

-d, --decompress force decompression

-t, --test test compressed file integrity

-l, --list list information about .xz files

-k, --keep keep (don't delete) input files

-f, --force force overwrite of output file and (de)compress links

-c, --stdout write to standard output and don't delete input files

-0 ... -9 compression preset; default is 6; take compressor *and*

decompressor memory usage into account before using 7-9!

-e, --extreme try to improve compression ratio by using more CPU time;

does not affect decompressor memory requirements

-q, --quiet suppress warnings; specify twice to suppress errors too

-v, --verbose be verbose; specify twice for even more verbose

-h, --help display this short help and exit

-H, --long-help display the long help (lists also the advanced options)

-V, --version display the version number and exit

With no FILE, or when FILE is -, read standard input.

Report bugs to (in English or Finnish).

XZ Utils home page:

最后根据帮助信息解压此文件。