Linux下的解压软件7zip

1.)下载安装7z软件（for linux）

 

#wget -c http://sourceforge.net/projects/p7zip/files/p7zip/9.20.1/p7zip_9.20.1_x86_linux_bin.tar.bz2/download #tar jxvf p7zip_9.20.1_x86_linux_bin.tar.bz2 cd /p7zip_9.20.1 #install.sh

###安装完成，可以使用了

 

个人实验：

可以解压tar.bz2压缩包，但是要解压两次（两次7z x *.tar.bz2   7z x *.tar)

 

支持7z（即执行LZMA压缩算法),ZIP,RAR,CAB，ARJ，GZIP, BZIP2，TAR，CPIO, RPM和DEB格式

 

2.)解压7z压缩的文件

7z x *.7z

 

3.)压缩文件（用密码加密）

7z a -p123456 test.7z /home/erico/test/

 

4.)解压带密码的压缩文件

7z x -p123456 test.7z

 

5.)删除压缩包里的文件

7z d -p123456 test.7z #(该命令会把test.7z里面的文件全部删除，只保留test.7z这个空包文件）

 

6.)压缩固定大小的包（分包）

7z a -p123456 -v1m test.7z /home/erico/test/  #(该命令行会将test目录打包成多个包，每个包大小都是1M，最后一个包<=1m)

 

7.)解压分包

7z x -p123456 -o/home/test_dir/ test.7z.001   # (该命令会将解压出来的文件放到/home/test_dir/目录下，注意，解压分包时一定要解压第一个分包【test.7z.001】！）

8.）保持文件目录路径和文件权限

一定要用root用户对目录压缩和解压，要不目录和文件的权限会改变！

 

9.）看7z（man 7z）的官方说明。

7z(1)                                                                    7z(1)

NAME
       7z - A file archiver with highest compression ratio

SYNOPSIS
       7z [adeltux] [-] [SWITCH] <ARCHIVE_NAME> <ARGUMENTS>...

DESCRIPTION
       7-Zip is a file archiver with the highest compression ratio. The
       program supports 7z  (that  implements  LZMA  compression  algo-
       rithm),  ZIP, CAB, ARJ, GZIP, BZIP2, TAR, CPIO, RPM and DEB for-
       mats. Compression ratio in the new 7z format  is  30-50%  better
       than ratio in ZIP format.

       7z uses plugins to handle archives.

FUNCTION LETTERS
       a      Add

       d      Delete
       e      Extract

       l      List

       t      Test

       u      Update

       x      eXtract with full paths

SWITCHES
       -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

       -l     don’t  store  symlinks;  store the files/directories they
              point to (CAUTION : the  scanning  stage  can  never  end
              because of recursive symlinks like ’ln -s .. ldir’)

       -m{Parameters}
              Set           Compression           Method           (see
              /usr/local/share/doc/p7zip/DOCS/MAN-
              UAL/switches/method.htm for a list of methods)

       -mhe=on|off
              7z  format  only  :  enables  or  disables archive header
              encryption (Default : off)

       -o{Directory}
              Set Output directory

       -p{Password}
              Set Password

       -r[-|0]
              Recurse subdirectories (CAUTION: this flag  does  not  do
              what you think, avoid using it)

       -sfx[{name}]
              Create SFX archive

       -si    Read  data  from StdIn (eg: tar cf - directory | 7z a -si
              directory.tar.7z)

       -so    Write data to StdOut (eg: % echo foo | 7z a dummy  -tgzip
              -si -so > /dev/null)

       -slt   Sets technical mode for l (list) command

       -t{Type}
              Type  of  archive (7z, zip, gzip, bzip2 or tar. 7z format
              is default)

       -v{Size}[b|k|m|g]
              Create volumes

       -u[-][p#][q#][r#][x#][y#][z#][!newArchiveName]
              Update options

       -w[path]
              Set Working directory

       -x[r[-|0]]]{@listfile|!wildcard}
              Exclude filenames

       -y     Assume Yes on all queries

DIAGNOSTICS
       7-Zip returns the following exit codes:

              0      Normal (no errors or warnings detected)

              1      Warning (Non fatal error(s)).  For  example,  some
                     files  cannot  be read during compressing. So they
                     were not compressed

              2      Fatal error

              7      Bad command line parameters

              8      Not enough memory for operation

              255    User stopped the process with control-C (or  simi-
                     lar)

Backup and limitations
       DO  NOT  USE  the  7-zip format for backup purpose on Linux/Unix
       because :
        - 7-zip does not store the owner/group of the file.

       On Linux/Unix, in order to backup directories you must use tar :
        -  to  backup  a  directory   :  tar cf - directory | 7za a -si
       directory.tar.7z
        - to restore your backup : 7za x -so directory.tar.7z | tar  xf
       -
       If  you  want  to  send  files and directories (not the owner of
       file) to others Unix/MacOS/Windows users, you can use the  7-zip
       format.

         example : 7za a directory.7z  directory

       Do not use "-r" because this flag does not do what you think.

       Do  not use directory/* because of ".*" files (example : "direc-
       tory/*" does not match "directory/.profile")

EXAMPLE 1
       7z a -t7z -m0=lzma -mx=9 -mfb=64 -md=32m -ms=on archive.7z dir1
              adds  all  files  from  directory   "dir1"   to   archive
              archive.7z using "ultra settings"

       -t7z   7z archive

       -m0=lzma
              lzma method

       -mx=9  level of compression = 9 (Ultra)

       -mfb=64
              number of fast bytes for LZMA = 64

       -md=32m
              dictionary size = 32 megabytes

       -ms=on solid archive = on

       -mx=9  level of compression = 9 (Ultra)

       -mfb=64
              number of fast bytes for LZMA = 64

       -md=32m
              dictionary size = 32 megabytes

       -ms=on solid archive = on

EXAMPLE 2
       7z a -sfx archive.exe dir1
              add  all  files  from  directory  "dir1"  to  SFX archive
              archive.exe (Remark : SFX archive MUST end with ".exe")

EXAMPLE 3
       7z a -mhe=on -pmy_password archive.7z a_directory
              add all files from directory "a_directory" to the archive
              "archive.7z" (with data and header archive encryption on)

SEE ALSO
       7za(1), 7zr(1), bzip2(1), gzip(1), zip(1)

HTML Documentation
       /usr/local/share/doc/p7zip/DOCS/MANUAL/index.htm

AUTHOR
       Written for Debian by Mohammed Adnene Trojette.

Mohammed Adnene Trojette       September 1 2006                          7z(1)