Linux compressed data

Linux File Compression tool

TD width= "valign=" top >bzip2

tools	file extension
.bz2	Use the Burrows-wheeler block to sort text compression algorithm
gzip	.gz	GNU Project compression tool
zip		unix version of Windows PKZIP program

1.BZIP2 Tools

bZIP	For compressing files
Bzcat	Used to display the contents of a compressed text file
Bunzip2	For extracting. bz2 files
Bzip2recover	Used to try to repair a corrupted compressed file

Example:

Compress Myprog files with bzip2

[Email protected] ~]# ls-l Myprog

-rw-r--r--1 root root 0 11-06 10:54 Myprog

[Email protected] ~]# bzip2 Myprog

[Email protected] ~]# ls-l my*

-rw-r--r--1 root root 11-06 10:54 myprog.bz2

*****************************************************

Extracting myprog.bz2 files with BUNZIP2

[Email protected] ~]# BUNZIP2 myprog.bz2

[Email protected] ~]# ls-l Myprog

-rw-r--r--1 root root 11-06 10:56 Myprog

2.gzip Tools

Gzip	For compressing files
Gzcat	Used to display compressed file contents
Gunzip	For extracting files

Compression:

[Email protected] ~]# gzip Myprog

[Email protected] ~]# ls-l my*

-rw-r--r--1 root root 11-06 10:56 myprog.gz

Extract:

[Email protected] ~]# gunzip myprog.gz

[Email protected] ~]# ls-l my*

-rw-r--r--1 root root 11-06 10:56 Myprog

3.zip Tools

Zip	Create a file containing list files and directories compressed
Zippcloak	Create an encrypted compressed file that contains list files and directories
Zipnote	Used to extract comments in a zip file
Zipsplit	Multiple files for splitting a zip file into a specified size
Unzip	Used to extract files and directories in a compressed ZIP file

4.tar Archive Command

Tar is used to archive files, and input can be written to a file

-A	--concatenate	Add an existing tar archive file to another existing archive
-C	--create	Create a new tar archive file
-D	--diff	Check the differences between the TAR archive file and the file system
	--delete	Delete from an existing tar archive file
-R	--append	Add a file to the end of an existing tar archive file
-T	--list	List the contents of an existing tar archive file
-U	--update	To update files in an existing tar archive
-X	--extract	Unzip an existing archive file
-C	--dir	Switch to the specified directory
-F	--file	Output results to a file or device
-j		To compress the output from directed to the BZIP2 command
-P		Keep all file permissions
-V		List files in process
-Z		Compress the output from the directed to gzip command

[Email protected] ~]# TAR-CVF Test.tar test/test2/

Create an archive named Test.tar that contains the contents of the Test1 and Test2 directories

[Email protected] ~]# TAR-TF Test.tar

Lists (but does not stress) the contents of the tar file Test.tar

[Email protected] ~]# TAR-XVF Test.tar

Unzip the contents of the Test.tar file

This article is from the Linux Operations sharing blog, so be sure to keep this source http://liangey.blog.51cto.com/9097868/1572859

Linux compressed data