The method of extracting 7z files in Ubuntu

Open the terminal and type the following command:

Apt-get Install P7zip-full

The console will have the following information typed:

Reading Package List ... Complete

Analyzing Dependency tree for Package

Reading status information ... Complete

Recommended Packages to install:

P7zip-rar

The following "new" packages will be installed:

P7zip-full

0 packages were upgraded, 1 new packages were installed, 0 packages were uninstalled, and 109 packages were not upgraded.

You need to download the 1,404 KB package.

Decompression will consume extra space in 3,482 KB.

Get: 1 http://cn.archive.ubuntu.com/ubuntu/natty/universe p7zip-full i386 9.04~dfsg.1-1 [1,404 KB]

Download 1,404 KB, time consuming 4 seconds (302 kb/s)

The package p7zip-full that was previously deselected has been selected.

(Reading database ...) The system currently has a total of 133,273 files and directories installed. )

Decompressing p7zip-full (from .../p7zip-full_9.04~dfsg.1-1_i386.deb) ...

Processing triggers for man-db ...

Setting P7zip-full (9.04~dfsg.1-1) ...

How to: 7z x file file is the filename you want to extract

This article from "LINUXQT Jinan high-tech Zone" blog, please be sure to retain this source http://qtlinux.blog.51cto.com/3052744/569406