Linux Common Commands (second edition)--Compression decompression command

Compression Decompression Command:

----------. GZ----------

1. Compression

Gzip[gnu Zip]:/bin/gzip

Format: gzip option [ file ]#压缩文件, Zip extension . gz, most commonly used under Linux #比较常见的软件源代码包的格式

Features:1) can only compress files, cannot compress the directory

2) do not retain the original document

E.g.gzip newfile# Original newfile Delete

2. Decompression

1) Gunzip[gnu zip]:/bin/gunzip

2) gzip-d# unzip . GZ

e.g.

Gzip-d newfile.gz

----------. Tar----------

3. compression

Tar:/bin/tar

#打包目录, package the directory into a file, generate . Tar, and if you compress it at this point, it will generate . GZ

Format: tar [ option CVF] [ compressed filename] [pre- compress file / directory name ]

-C: generate a package file for . Tar , mandatory option

-V: Show more information

-F: set the compressed file name, required option

-Z: package compression at the same time

E.G.TAR-CVFZ dir1.tar.gz dir1# to package dir and compress it into a single file

[Note-This one step packaging and compression is not supported by all UNIX Systems! ]

At this time: 1) Packing:tar-cf Newdir.tar newdir

2) Compression:gzip Newdir.tar#或者用连接符.

4. Decompression

tar [ options ]:

-X Unpack the . Tar file

-V Show More information

-F Specify Unzip file

-Z Decompression

E.G.TAR-ZXF newdir4.tar.gz

Step Gunzip newdir.tar.gz

TAR-XVF Newdir.tar

----------. Zip----------

5.Zip:/usr/bin/zip

The default Windows and Linux are the only common format , so if the file is small, we recommend using the. zip

Format: Zip [ option - R] [ compressed filename ] [ file / directory name before compression ]

e.g.zip services.zip/etc/services compressed Files

Zip-r newdir.zip Test Compression directory

Zip up the Two major defectsof gzip: 1) Keep source files

2) can compress the directory

6,unzip/usr/bin/unzip

Example: Unzip newdir.zip# keep the original file

----------. bz2----------

7,bzip2/usr/bin/bzip2

#相当与gzip upgrade , the compression ratio is amazing , but still cannot compress the directory , the compressed file name . bz2, Of course, it can be combined with tar .

Format: bzip2 option [-K] [ file name ]#加- k keep the source file, or zip Same

8,bunzip2

You can use-K to preserve source compressed files

Linux Common Commands (second edition)--Compression decompression command