How to use gzip compression command

王林
Release: 2020-10-26 15:32:34
Original
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How to use the gzip compression command: [gzip [option] source file], such as [gzip install.log]. gzip is a command commonly used in Linux systems to compress and decompress files.

How to use gzip compression command

gzip is a command often used to compress and decompress files in Linux systems. The extension of the new file compressed by this command is usually marked as ".gz".

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The basic format of the gzip command is as follows:

[root@localhost ~]# gzip [选项] 源文件
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Basic compression

The gzip compression command is very simple. You don't even need to specify the compressed package name after compression, just the source file name. Let’s try:

[root@localhost ~]# gzip install.log
#压缩instal.log 文件
[root@localhost ~]# ls
anaconda-ks.cfg install.log.gz install.log.syslog
#压缩文件生成,但是源文件也消失了
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Preserve source file compression

When compressing a file using the gzip command, the source file disappears, resulting in a compressed file. At this time, some people will have obsessive-compulsive disorder and ask the author: Can you prevent the source file from disappearing when compressing the file? Okay, it's possible, but it's very awkward.

[root@localhost ~]# gzip -c anaconda-ks.cfg >anaconda-ks.cfg.gz
#使用-c选项,但是不让压缩数据输出到屏幕上,而是重定向到压缩文件中,这样可以缩文件的同时不删除源文件
[root@localhost ~]# ls
anaconda-ks.cfg anaconda-ks.cfg.gz install.log.gz install.log.syslog
#可以看到压缩文件和源文件都存在
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