File compression and decompression, File compression and decompression

Source: Internet
Author: User

File compression and decompression, File compression and decompression

File compression and decompression

Common commands and Parameters

1 gzip

-C: output the compressed or decompressed results to the standard output.

-D decompression, equivalent to guzip

-# (1-9) specifies the compression ratio. The default value is 6.

View the file without zcat decompression.

Compression: gzip FileName

Decompress: gzip-d FileName.gz

2 bzip2

-D decompression, equivalent to bunzip

-K: Retain the original file

-# (1-9) specifies the compression ratio. The default value is 6.

View the file without decompressing bzcat.

Compression: bzip2 FileName

Decompress 1: bzip2-d FileName.bz2

Decompress 2: bunzip2 FileName.bz2

3 xz

A compression command to replace gzip and bzip2

-D Decompression

-K: Retain the original file

-# (1-9) Specify the compression ratio.

View files without decompression of xzcat

Compression: xz Fileanme

Decompress: xz-d Filename. xz

The preceding three common compression commands gzip, bzip2, and xz are used with the same parameters. Remember, you can easily get started with either of them.

4 tar

Packaging tool to package multiple directories into one file. It does not support compression.

-C. Create a package file

-F specifies the package file name (-f must be put together with the file name)

-V shows the packaging process

-R: append an object to an archive object

-X expands the archive file, which is used in combination with-v and-f.

-T view the file list in the archive file

-C. decompress the package to the specified directory.

Usually used together with a compression Tool

-J: adopts bzip2 Compression

-Z: gzip Compression

-J: adopts xz Compression

Eg. Compression/data

Tar-zcvf/home/redhat/data.tar.gz/data/

/Home/redhat.tar.gz is the compressed file name.

/Data is the directory to be compressed

Decompress/home/redhat/date.tar.gz

 

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