Linux gunzip command to parse gunzip extracted files

We have already discussed the usage of the gzip command under Linux. For beginners, the gzip utility is mainly used to compress or expand files. When decompressing, add the -d option after the gzip command. The usage example is as follows:

Gzip -d [compressed-file-name]

However, when decompressing or expanding gzip-created compressed files, there is another completely different tool available. The tool to talk about is gunzip. In this article, we will use some simple, easy-to-understand examples to explain the use of the gunzip command. All examples and guides in the article are tested in the Ubuntu 16.04 environment.

Linux gunzip command

We now know that compressed files can be unzipped with the gzip -d or gunzip command. The basic gunzip syntax is:

Gunzip [compressed-file-name]

The following Q&A example will show more clearly how the gunzip tool works:

Q1. How to use gunzip to extract compressed files?

Decompressing the command is very simple, just passing the compressed file name as a parameter to the gunzip command.

Gunzip [archive-name]

such as:

Gunzip file1.gz

How to use gunzip to extract compressed files?

Q2. How to make gunzip not delete the original compressed file?

As you have noticed, the gunzip command unpacks the original compressed file. If you want to keep the original compressed file, you can use the -c option.

Gunzip -c [archive-name] 》 [outputfile-name]

such as:

Gunzip -c file1.gz 》 file1

How to make gunzip not delete the original compressed file?

In this way, the original compressed file will not be deleted.

Q3. How to use gunzip to extract files to other paths?

We have already discussed the usage of the -c option in Q&A. Use gunzip to decompress the file to a different path outside the working directory, just add the absolute path of the target directory after the redirection operator.

Gunzip -c [compressed-file] [/complete/path/to/dest/dir/filename]

Examples are as follows:

Gunzip -c file1.gz ” /home/himanshu/file1

More information

The following excerpts from the gzip/gunzip man page will be useful to those who want to learn more.

Gunzip accepts a series of files on the command line, and starts each file with the correct magic number and suffixes it with a .gz, -gz, .z, -z, or _z (case-ignoring) zip file. Replace it with an uncompressed file and delete its original extension. Gunzip also recognizes compressed files with special extensions, such as .tgz and .taz, which are abbreviations for .tar.gz and .tar.Z. When compressing, gzip uses .tgz as an extension if necessary, instead of just clipping off the .tar suffix.

Gunzip can now extract files generated by gzip, zip, compress, and compress -H(pack). Gunzip automatically detects the input file format. When using the first two compression formats, gunzip checks the 32-bit Cyclic Redundancy Check (CRC). For the pack package, gunzip checks the compressed length. The standard compression format is not designed to allow compatibility testing. However, gunzip can sometimes detect bad .Z files. If you make a mistake when decompressing the .Z file, don't assume that the .Z file is correct because the standard decompression is not reported. This usually means that the standard decompression process does not detect its input, but instead produces an erroneous output directly. The SCO's compress-H format (lzh compression method) does not include a CRC, but it also allows some compatibility checking.

Conclusion

The basic usage of gunzip mentioned so far does not require too much learning curve. We have included almost all the knowledge that a beginner must use to begin using it. For more usage, see the man page.

HP Adapter

Laptop power adapter charger for HP:

Our service:

Stable output and high charging efficiency.

Elegant outlook design as original one, touch smoothly and comfortable.

Original charger is good, but as a replacement, our product has more reasonable price when your original charger is broken.

And, the market of the replacement adapters becomes bigger and bigger. People would rather buy a copy one then the original because of the price.

But at the same time, people worry about that they will buy something defective. So the problem comes, how to buy a good quality one with a good price?

As a professional power adapter manufacturer, we have excellent R&D team, skilled staffs and responsible after-sale service. All your benefits can be under protected after you buy products for our company.

Our certificates :ISO9001:2008 & ISO14001:2004 , CCC , CE , FCC , ROHS.

All our products has 1 year warranty. In other words, if you get the dad products which are not damaged physically from us in one year, we will replace you the new one or the whole bulk order.

Laptop Adapter For Hp,Hp Laptop Adapter,Charger For Hp,Power Supply For Hp

Shenzhen Waweis Technology Co., Ltd. , https://www.waweisasdapter.com