Linux---Decompression

One, compression, decompression command

Command format: gz/ba2/xz/zip/z

Compress/uncompress is ancient, not used at present.

The most commonly used xz/bz2/gz is now.

Second, the common compression command detailed

1. Gzip:. GZ cannot compress the catalog

Gzip/path/to/somefile: The original file will be deleted after compressing

-D: means the decompression of the equivalent OP gunzip

-#: #取值为1-9, default is 6 specify compression ratio

Zcat: View compressed files under the condition of no pressure, direct use of cat display garbled;

Gunzip: Unzip

Gunzip/path/to/somefil: The original file will be deleted when the decompression is complete

2, bzip2:.bz2 cannot compress the directory

Greater compression ratio than gzip

Bzip/path/to/somefile: The original file will be deleted

-d/pathto/somefile: The original file will be deleted

-#: #取值为1-9, default is 6 specify compression ratio

-K: Keep the original file when compressing

BUNZIP2: Unzip, use with-D

Bzcat: View compressed files under the condition of no pressure, direct use of cat display garbled;

3, XZ:.XZ cannot compress the directory

-D: Unzip

-#: #取值为1-9, default is 6 specify compression ratio

-K: Keep the original file when compressing

Xzdec decompression command; The file name is displayed on the screen (basic)

4, Zip:.zip retain the original file; that is, archive and compression, compression ratio of small

Zip filename.zip file1 file2 ...

Unzip File.zip

5. Tar: Archive tool, do not compress

-C: Create an archive file

-F File.tar: Archived files for operations

SUCH:TAR-CF Aa.tar aa*.txt

-XF: Expand: TAR-XF Aa.tar Archive file will not be deleted after decompression

--xattrs: Preserve extended attribute information for files while archiving

-T: Do not expand Archiving, view archived content and use- f together

-TF:TAR-TF Aa.tar Don't expand the archive to see what's archived

-ZCF: Archive and invoke gzip compression

-ZXF: Call gzip to unzip and expand Archive,-Z option to omit

-jcf:bzip2

-JXF:

-jcf:xz

-JXF:

With the above command: archive first and then compress

6, Cpio: Make archive or recall archive; very old file with a function similar to tar

Third, supplementary

Using scripts to implement archiving

#! /bin/bash
#
read-p "Enter three paths to compress files" file1 file2 file3
read-p "stored path and name" Dest
#例如: Text/aa
read-p "input compression type GZIP|BZIP2|XZ;" Comp
Case $come in
gzip)
tar-zcf ${dest}.tar.gz $file 1 $file 2 $file 3
;;
bzip2)
tar-jcf ${dest}.tar.bz2 $file 1 $file 2 $file 3
;;
XZ)
tar-cf ${dest}.tar $file 1 $file 2 $file 3
ZX ${dest}.tar
;;
*)
echo "Wrong input"
Exit:9
;;
Esca

Linux---Decompression