Linux compression, decompression, and archiving tools

Compression, decompression, and archiving tools

Compress/uncompress:. Z
Gzip/gunzip:. gz
BZIP2/BUNZIP2:. bz2
XZ/UNXZ:. XZ
Zip/unzip
Tar, Cpio

1, Gzip/gunzip

gzip [OPTION] ... FILE ...
-D: Uncompressed, equivalent to Gunzip
-C: Outputs the result to standard output;
-#:1-9, specify the compression ratio;

Zcat: View text file contents without explicit expansion;
[Email protected] test]# ll-h
Total 24K
-rw-r--r--1 root root 18K Jul 15:42 functions
-RW-------1 root root 146 Jul 15:42 messages
[Email protected] test]# gzip messages
[email protected] test]# LL
Total 24
-rw-r--r--1 root root 18216 Jul 15:42 functions
-RW-------1 root root 15:42 messages.gz

[Email protected] test]# gunzip messages.gz
[email protected] test]# LL
Total 24
-rw-r--r--1 root root 18216 Jul 15:42 functions
-RW-------1 root root 146 Jul 15:42 messages

To keep the original file you can add the-c parameter
[Email protected] test]# GZIP-C messages > messages.gz
[email protected] test]# LL
Total 32
-rw-r--r--1 root root 18216 Jul 15:42 functions
-RW-------1 root root 146 Jul 15:42 messages
-rw-r--r--1 root root 15:48 messages.gz
-rw-r--r--1 root root 15:48 messages.gz2

Note: The original file of the Gzip/gunzip file was deleted oh!!!!!!!!!!!


2, Bzip2/bunzip2/bzcat

bzip2 [OPTION] ... FILE ...
-k:keep, keep the original documents;
-D: Unzip
-#:1-9, compression ratio, default is 6;

Bzcat: View text file contents without explicit expansion;
[Email protected] test]# BZIP2 messages
[Email protected] test]# ll-h
Total 36K
-rw-r--r--1 root root 18K Jul 15:42 functions
-RW-------1 root root 162 Jul 15:42 messages.bz2
-rw-r--r--1 root root 15:48 messages.gz
-rw-r--r--1 root root 15:48 messages.gz2
-rw-r--r--1 root root 0 Jul 15:49 messages.gzddd
-rw-r--r--1 root root 15:51 messages.gzdddddddd
[Email protected] test]# bzip2-d messages.bz2
[email protected] test]# LL
Total 36
-rw-r--r--1 root root 18216 Jul 15:42 functions
-RW-------1 root root 146 Jul 15:42 messages
-rw-r--r--1 root root 15:48 messages.gz
-rw-r--r--1 root root 15:48 messages.gz2
-rw-r--r--1 root root 0 Jul 15:49 messages.gzddd
-rw-r--r--1 root root 15:51 messages.gzdddddddd

Note: The original file of the bzip2/bunzip2/file was deleted oh!!!!!!!!!!!

3, Xz/unxz/xzcat

bzip2 [OPTION] ... FILE ...
-k:keep, keep the original documents;
-D: Unzip
-#:1-9, compression ratio, default is 6;

Xzcat: View text file contents without explicit expansion;
[Email protected] test]# XZ messages
[email protected] test]# LL
Total 36
-rw-r--r--1 root root 18216 Jul 15:42 functions
-rw-r--r--1 root root 15:48 messages.gz
-rw-r--r--1 root root 15:48 messages.gz2
-rw-r--r--1 root root 0 Jul 15:49 messages.gzddd
-rw-r--r--1 root root 15:51 messages.gzdddddddd
-RW-------1 root root 188 Jul 15:42 Messages.xz
[Email protected] test]# Unxz MESSAGES.XZ
[email protected] test]# LL
Total 36
-rw-r--r--1 root root 18216 Jul 15:42 functions
-RW-------1 root root 146 Jul 15:42 messages
-rw-r--r--1 root root 15:48 messages.gz
-rw-r--r--1 root root 15:48 messages.gz2
-rw-r--r--1 root root 0 Jul 15:49 messages.gzddd
-rw-r--r--1 root root 15:51 messages.gzdddddddd
Note: The original file of the xz/unxz/file was deleted oh!!!!!!!!!!!


4. Tar
tar [OPTION] ...

(1) Create an archive
Tar-c-f/path/to/somefile.tar FILE ...

Tar-cf/path/to/somefile.tar FILE ...

(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/to/dir

Combined with compression tool implementation: Archive and Compress

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

This article is from the "Liang blog" blog, make sure to keep this source http://7038006.blog.51cto.com/7028006/1829380

Linux compression, decompression, and archiving tools