Linux file compression and archiving tools

1, compress/uncompress. Z format

compress [-DFVCVR] [-B maxbits] [file ...]

-D: uncompressed, equivalent to

-C: Result output to standard output, do not delete original file

Compress-c File > file. Z

-V: Show details

Uncompress decompression

-c-d file. Z > File-> extract, but keep the source file

Zcat file. Z >file

2, gzip/gunzip. gz format

gzip [OPTION] ... FILE ...

-D: Uncompressed, equivalent to Gunzip

-C: Output compressed or decompressed results to standard output (for preserving source files)

-#: 1-9, specify the compression ratio, the larger the value, the greater the compression ratio

Zcat: View text file contents without explicit decompression

Instance:

GZIP-C Messages >messages.gz

Gzip-c-D messages.gz > messages

Zcat messages.gz > messages

Bzip2/bunzip2/bzcat. bz2

3. bzip2 [OPTION] ... FILE ...

-k:keep, keep the original file

-D: Unzip

-#: 1-9, compression ratio, default = 6

Bzcat: View text file contents without explicit decompression

4, Xz/unxz/xzcat. XZ format

XZ [OPTION] ... FILE ...

-k:keep, keep the original file

-D: Unzip

-#: 1-9, compression ratio, default = 6

Xzcat: View text file contents without explicit decompression

5, Zip/unzip (support compression directory). Zip format

Packaging compression

Zip–r Sysconfig sysconfig/

Unpacking and decompression

Unzip Sysconfig.zip

Cat/var/log/messages | Zip message–

UNZIP-P Message > Message

6. Tar Archive tool

tar [OPTION] ...

(1) Create an archive

Tar-c-F Path/to/somefile.tar (output files) file (source file) ...

Tar Cf/path/to/somefile.tar (output files) file (source file) ...

-V Show verbose archiving process

When archiving, automatically remove the "/" at the beginning to avoid the time when the recovery is placed directly into the absolute path, covering the

Legacy data

(2) View the list of files in the archive file

Tar-t-f/path/to/somefile.tar

(3) Expand archive

Tar-x-f/path/to/somefile.tar

Tar-x-f/path/to/somefile.tar-c/path/

Tar is now supported for automatic identification with file format, below the-j-z, etc., can not input

Combined with compression tool implementation: Archive and Compress

-J:BZIP2,-z:gzip,-J:XZ

7, Cpio (it does not have compression function, only packaging)

Copy from or to a file

The Cpio command is a redirected way to package a file for backup, restore recovery

Tool that can decompress files ending with ". Cpio" or ". Tar".

cpio [Options] > file name or device name

Cpio [Options] < file name or device name

Options

-o Package a file copy into a file or export the file to the device

-I unpack, unzip the package file or restore the backup on the device to the system

-T Preview, view the contents of the file or output to the file on the device

-V Displays the file name during the packaging process.

-D Unpack the directory, and automatically build the directory when Cpio restore

-C A newer storage method

Example

To back up the ETC directory:

Find./etc-print |cpio-ov >etc.cpio

Content Preview

Cpio–tv < Etc.cpio

To unpack a file

Cpio–iv <etc.cpio

Cpio–idv < Etc.cpio

Linux file compression and archiving tools