Linux file compression and packaging

Common compressed packaging file tools under Linux are: gzip, bzip2, XZ, zip, and tar

Gzip Compression Tool:

Format: gzip [-d#] filename, where # is a number 1-9

-D: This parameter is used when decompressing

-#: Indicates the compression level, 1 is the worst, 9 is the best, the default is 6.

-C: Keep source files when compressing

Compression: gzip 1.txt; compress 1.txt, file 1.txt disappears, generate 1.txt.gz

Decompression: gzip-d 1.txt.gz; gzip-d ==gunzip

View. GZ compressed Files: Zcat 1.txt.gz

"Note: gzip does not support compressed directories"

BZIP2 Compression Tool:

Format: bzip2 [-dz] filename, where-D: decompression,-Z: Compression, BZIP2 also has 1-9 compression levels, default level is 9

Compression: bzip2 1.txt;bzip2 Compressed source files will also disappear; (-C: Preserve source files when compressing)

Decompression: bzip2-d 1.txt.bz2; bzip2-d ==bunzip2

View. bz2 compressed Files: Bzcat 1.txt.bz2

"Note: Bzip2 also does not support compressed directories"

XZ Compression Tool:

Format: XZ [-dz] filename; similar to bzip2,-Z: compression,-D compression; default level is 6

Compression: XZ 1.txt; source file disappears; (-C: Preserves source files when compressing)

Decompression: xz-d 1.txt.xz; xz-d ==unxz

View. xz File: Xzcat 1.txt.xz

"Note: XZ also does not support compressed catalogs"

Zip compression tool:

Zip compression in Windows and Linux are more commonly used, it can compress files and directories, compressed directory, you need to specify directory path files, for example: Zip 1.txt.zip 1.txt

If you do not have a zip command, you need to install it: Yum install-y zip, and of course unzip needs Yum install-y unzip installation

Compression: Zip Test.zip test/*; -R: Implementing Multilevel Directory Compression

Decompression: Unzip Test.zip; Use-D to specify the extracted storage directory, such as unzip 1.zip-d/tmp

"Note: the. zip file is not able to view the contents of the file, but can view the file list of compressed files, the command is Unzip-l test.zip"

Tar Packaging tools:

Tar itself is a packaging tool that can package a directory into a file that synthesizes all the files into a large file for easy movement or duplication.

Format: tar [-ZJXCVFPP] filename

-Z: Indicates simultaneous use of gzip compression

-j: Indicates simultaneous use of bzip2 compression

-j: Indicates simultaneous use of XZ compression

-X: Means unpacking or decompressing

-T: Indicates viewing files in the TAR package

-C: means to build a tar package or to compress a file package

-V: Represents a visualization

-F: followed by file name (that is,-f filename)

-P: Indicates the use of the original file's properties (not commonly used)

-P: Indicates that an absolute path can be used (not commonly used)

--exclude filename: Do not include the filename file when packaging or compressing (infrequently used)

Packing directory: TAR-CVF 123.tar 123/

Package files and directories simultaneously: TAR-CVF 123.tar 1.txt 123/

Unpacking: TAR-XVF 123.tar

View package files: TAR-TF 123.tar

Filter files or directories when packaging: TAR-CVF 123.tar--excude 1.txt--exclude 123/

Package and Compress files simultaneously (unzip):

TAR-ZCVF 123.tar.gz 123/; TAR-ZXVF 123.tar.gz;

TAR-JCVF 123.tar.bz2 123/; TAR-JXVF 123.tar.bz2;

TAR-JCVF 123.TAR.XZ 123/; TAR-JXVF 123.tar.xz;

Linux file compression and packaging