How To Compress A Compressed File

Summarize the use of compressed files and files in Linux, compressed files and file is the most common in Linux, a kind of operation, familiar with this part of the skills are also necessary, generally our common commands are: tar, unzip, bunzip2 and so on, How to use the right is also need to master a knowledge focus, the following we divided into two parts to the compressed file and decompression file description. A, decompression small full tar-i or BUNZIP2 command can be decompressed. bz2 file tar xvfj example.tar ...

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Function Description: Compress or extract files. Syntax: compress&http://www.aliyun.com/zixun/aggregation/37954.html >nbsp; [-CDFRVV] [B < compression efficiency] [File or directory ...] Add: Compress is a long history of the compression program, the file after it compressed, its name will be more ". The extension of Z. ...

Patool is a portable command line compressed File Manager. For the creation, extraction, testing, and listing of various types of compressed files. The Patool advantage is that it can simply process the archive without having to memorize a large number of programs and options, and the archive format is an extension of the file (1) program as the archive file. Patool supported formats include: 7z (. 7z), Aces (. Aces), ALZip (. Alz), AR (. a), ARC (. arc), ARJ (. ARJ), BZIP2 (. bz2 ...).

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File compression has two main benefits, one is to reduce the space occupied by storage files, the other is to speed up the data transmission. In the context of Hadoop's big data, these two points are particularly important, so let me now look at the file compression in Hadoop. Hadoop supports a wide variety of compression formats, we look at a table: Deflate is also using the LZ77 algorithm and Huffman coding (Huffman http://www.aliyun.com/zixun/aggregation/1552.html ...

As you know, in order to save the file and save space occupancy, the file is often compressed. Moreover, because the file is compressed usually only a compressed file, easy to carry, but also password protection, so the file compression and decompression has become a common use of the operation, can be used in this site "DOS use" column to see. So how do you do these things? Here is a description of the DOS compression/decompression method. &http://www.aliyun.com/zixun/aggregation/37954.ht ...

1 compression in general, the computer processing of data exist some redundancy, at the same time, the data, especially the correlation between adjacent data, so you can through some different from the original encoding of the special encoding method to save data, so that the data occupy a small amount of storage space, this process is generally called compression. The concept of compression corresponds to decompression, the process of restoring compressed data from a special encoding to the original data. Compression is widely used in mass data processing, compression of data files, can effectively reduce the space required to store files, and speed up data on the network or to ...