rar是一个在windows下盛行的压缩格式，到了linux/unix环境下，却连找个解压缩的工具都很难找到。网上找了下，发现7zip可以用来解压这个。顺便记录下解决过程：
1、安装以下程序：
-rw-r--r-- 1 root root 2152153 Mar 31 10:56 p7zip_9.20.1_x86_linux_bin.tar.bz2
-rw-r--r-- 1 root root 3835235 Mar 31 10:56 p7zip_9.20.1_src_all.tar.bz2
2、分别解压得到：
p7zip_9.20.1目录
3、进入p7zip_9.20.1目录，安装：
[root@DB p7zip_9.20.1]# ./install.sh
- installing /usr/local/bin/7za
- installing /usr/local/bin/7zr
- installing /usr/local/bin/7z
- installing /usr/local/lib/p7zip/7zCon.sfx
- installing /usr/local/lib/p7zip/7z.so
- installing /usr/local/lib/p7zip/Codecs
- installing /usr/local/man/man1/7z.1
- installing /usr/local/man/man1/7za.1
- installing /usr/local/man/man1/7zr.1
- installing /usr/local/share/doc/p7zip/README
- installing /usr/local/share/doc/p7zip/ChangeLog
- installing HTML help in /usr/local/share/doc/p7zip/DOCS
总共有三类命令：7z 7zr 7za，作用：
7z uses plugins (7z.so and Codecs/Rar29.so) to handle archives.
7za is a stand-alone executable.
7za handles less archive formats than 7z.exe.
7zr is a light stand-alone executable that supports only 7z/LZMA/BCJ/BCJ2.
所以用7z来解压，先看下命令格式：
[root@DB p7zip_9.20.1]# 7z
7-Zip 9.20 Copyright (c) 1999-2010 Igor Pavlov 2010-11-18
p7zip Version 9.20 (locale=en_US.UTF-8,Utf16=on,HugeFiles=on,2 CPUs)
Usage: 7z [...] [...]
[]
a: Add files to archive
b: Benchmark
d: Delete files from archive
e: Extract files from archive (without using directory names)
l: List contents of archive
t: Test integrity of archive
u: Update files to archive
x: eXtract files with full paths
-ai[r[-|0]]{@listfile|!wildcard}: Include archives
-ax[r[-|0]]{@listfile|!wildcard}: eXclude archives
-bd: Disable percentage indicator
-i[r[-|0]]{@listfile|!wildcard}: Include filenames
-m{Parameters}: set compression Method
-o{Directory}: set Output directory
-p{Password}: set Password
-r[-|0]: Recurse subdirectories
-scs{UTF-8 | WIN | DOS}: set charset for list files
-sfx[{name}]: Create SFX archive
-si[{name}]: read data from stdin
-slt: show technical information for l (List) command
-so: write data to stdout
-ssc[-]: set sensitive case mode
-t{Type}: Set type of archive
-u[-][p#][q#][r#][x#][y#][z#][!newArchiveName]: Update options
-v{Size}[b|k|m|g]: Create volumes
-w[{path}]: assign Work directory. Empty path means a temporary directory
-x[r[-|0]]]{@listfile|!wildcard}: eXclude filenames
-y: assume Yes on all queries
起先以为这么解压就行了：
7z -e xx.rar
但是报：
[oracle@DB ~]$ 7z -e wind_20120101.rar
Error:
Incorrect command line
奇怪，难道跟正常的格式不一样么？所以又回过头去仔细学习了下命令格式。
重新再来：
[oracle@DB ~]$7z e -slt wind_20120101.rar
7-Zip 9.20 Copyright (c) 1999-2010 Igor Pavlov 2010-11-18
p7zip Version 9.20 (locale=en_US,Utf16=on,HugeFiles=on,2 CPUs)
Processing archive: wind_20120101.rar
这下可以了。
来自 “ ITPUB博客 ” ，链接：http://blog.itpub.net/12932950/viewspace-720028/，如需转载，请注明出处，否则将追究法律责任。