Compression and decompression tools commonly used in Linux

First, related terms

Compression: An operation that reduces the file storage space by the algorithm and takes time to change space

Compression ratio: The ratio of size before compression to a file compression operation

Ii. compression tools commonly used in Linux

Compress/uncompress

Is incremented after the file name. The suffix name of z; xxx. Z, rarely used, poor algorithm

Gzip/gunzip

Adds a. gz suffix after the file name: xxx.gz

-D decompression, equivalent to Gunzip

-number--fast--best is compressed at level 1-9, default is 6

-C outputs the compression results to standard output, but does not compress the source files and can be packaged using redirection

Bzip2/bunzip2

Suffix name:. bz2

-D Decompression

-K bzip2 The source file is deleted by default when compressing and decompressing, using this option to preserve the source file

-C outputs the compression results to standard output, but does not compress the source files

-1-9 default compression level is 9

Xz/unxz

Suffix name:. xz

Xz,unxz,xzcat,lzma,unlzma,lzcat

-D decompression

-K Keep the original file

-0-9 default compression level is 6

Zip/unzip

In order to be compatible with Windows development, mainly in win, the main role is packaging, source files are not deleted, suffix name:. zip

Zip ZipFile file

-p password

Unzip

-L View a list of files in a compressed package

Tar: archive, which itself does not have the compression function, can be used

Options:

Main options

-C: Create an archive file

-r: Append file at the end of the archive file

-T: List the contents of the archive file

-u: Append to the archive file when the file is newer than the contents of the file

-x: Get the file from the archive, release the file

Accessibility Options:

-F: The option to indicate the profile when using the archive file

-C: When releasing files in the file, do not release to the current directory, but specify additional paths

-j: Call bzip2 compression, used primarily when creating an archive file

-j: Call XZ compression

-Z: Call the gzip tool

-Z: Call the Compress tool

-K: When releasing files in the file, if the target location has the same name as the file, the file is not released, and an error

--exclude=pattern: Files that are PATTERN-matched are not released when files are released in the archive

Example:

tar-cjf/backup/etc-' Date +%f '-' date +%h '. tar.xz/etc

Compression and decompression tools commonly used in Linux