diff --git a/sources/tech/20171002 Linux Gunzip Command Explained with Examples.md b/sources/tech/20171002 Linux Gunzip Command Explained with Examples.md deleted file mode 100644 index cab0c84bd7..0000000000 --- a/sources/tech/20171002 Linux Gunzip Command Explained with Examples.md +++ /dev/null @@ -1,100 +0,0 @@ -Linux Gunzip Command Explained with Examples -====== - -We have [already discussed][1] the **gzip** command in Linux. For starters, the tool is used to compress or expand files. To uncompress, the command offers a command line option **-d** , which can be used in the following way: - -gzip -d [compressed-file-name] - -However, there's an entirely different tool that you can use for uncompressing or expanding archives created by gzip. The tool in question is **gunzip**. In this article, we will discuss the gunzip command using some easy to understand examples. Please note that all examples/instructions mentioned in the tutorial have been tested on Ubuntu 16.04. - -### Linux gunzip command - -So now we know that compressed files can be restored using either 'gzip -d' or the gunzip command. The basic syntax of gunzip is: - -gunzip [compressed-file-name] - -The following Q&A-style examples should give you a better idea of how the tool works: - -### Q1. How to uncompress archives using gunzip? - -This is very simple - just pass the name of the archive file as argument to gunzip. - -gunzip [archive-name] - -For example: - -gunzip file1.gz - -[![How to uncompress archives using gunzip][2]][3] - -### Q2. How to make gunzip not delete archive file? - -As you'd have noticed, the gunzip command deletes the archive file after uncompressing it. However, if you want the archive to stay, you can do that using the **-c** command line option. - -gunzip -c [archive-name] > [outputfile-name] - -For example: - -gunzip -c file1.gz > file1 - -[![How to make gunzip not delete archive file][4]][5] - -So you can see that the archive file wasn't deleted in this case. - -### Q3. How to make gunzip put the uncompressed file in some other directory? - -We've already discussed the **-c** option in the previous Q &A. To make gunzip put the uncompressed file in a directory other than the present working directory, just provide the absolute path after the redirection operator. - -gunzip -c [compressed-file] > [/complete/path/to/dest/dir/filename] - -Here's an example: - -gunzip -c file1.gz > /home/himanshu/file1 - -### More info - -The following details - taken from the common manpage of gzip/gunzip - should be beneficial for those who want to know more about the command: -``` - gunzip takes a list of files on its command line and replaces each file -       whose  name ends with .gz, -gz, .z, -z, or _z (ignoring case) and which -       begins with the correct magic number with an uncompressed file  without -       the  original extension.  gunzip also recognizes the special extensions -       .tgz and .taz as shorthands for .tar.gz and .tar.Z respectively.   When -       compressing, gzip uses the .tgz extension if necessary instead of trun -       cating a file with a .tar extension. - -       gunzip can currently decompress files created by gzip,  zip,  compress, -       compress  -H  or pack.  The detection of the input format is automatic. -       When using the first two formats, gunzip checks a 32 bit CRC. For  pack -       and gunzip checks the uncompressed length. The standard compress format -       was not designed to allow consistency checks. However gunzip  is  some -       times  able  to  detect  a bad .Z file. If you get an error when uncom -       pressing a .Z file, do not assume that the .Z file  is  correct  simply -       because the standard uncompress does not complain. This generally means -       that the standard uncompress does not check its input, and happily gen -       erates  garbage  output.   The  SCO compress -H format (lzh compression -       method) does not include a CRC but also allows some consistency checks. -``` - -### Conclusion - -As far as basic usage is concerned, there isn't much of a learning curve associated with Gunzip. We've covered pretty much everything that a beginner needs to learn about this command in order to start using it. For more information, head to its [man page][6]. - - --------------------------------------------------------------------------------- - -via: https://www.howtoforge.com/linux-gunzip-command/ - -作者：[Himanshu Arora][a] -译者：[译者ID](https://github.com/译者ID) -校对：[校对者ID](https://github.com/校对者ID) - -本文由 [LCTT](https://github.com/LCTT/TranslateProject) 原创编译，[Linux中国](https://linux.cn/) 荣誉推出 - -[a]:https://www.howtoforge.com -[1]:https://www.howtoforge.com/linux-gzip-command/ -[2]:https://www.howtoforge.com/images/linux_gunzip_command/gunzip-basic-usage.png -[3]:https://www.howtoforge.com/images/linux_gunzip_command/big/gunzip-basic-usage.png -[4]:https://www.howtoforge.com/images/linux_gunzip_command/gunzip-c.png -[5]:https://www.howtoforge.com/images/linux_gunzip_command/big/gunzip-c.png -[6]:https://linux.die.net/man/1/gzip