1312_ Apply 7z command for compression and decompression

The summary of the use of my commonly used tools is all here ： GreyZhang/toolbox: Common tools use queries , Non tutorial , For self reference only ！ (github.com)

I don't know when to start , I started using various NAS Or a development board like raspberry pie to build a home server And my personal data center . occasionally , Data handling is required when switching hard disks , And the operation of compression and decompression is indispensable when carrying . If it is a whole volume compression or decompression , I used it most before zip and unzip, There are few detailed usages to master , But a few books can meet my own needs . however , In these two commands, I have never found a better way of volume compression and decompression .

In the use of PC as well as GUI When , The compression tool I use most in recent years is actually 7z, It basically has all the functions of compression and decompression I need . Open source software like this , It is usually good in command line support . So I tried to explore this aspect , The result is satisfactory .

Here it is , Summarize some experience when using this tool .

1. install

Installation is actually very easy , One command is enough , It is important to note that linux There may be different distribution versions in the environment of , Try to install a full-featured version .

sudo apt-get install p7zip-full

2. Compress the specified file

2.1 7z a xxx.7z xxx

This is a way of using less parameters , By default, you can actually generate 7z The format of .

This is through GUI Software to see the effect . First, it can be seen that the format can be recognized , In addition, I can see that the compressed content is ok .

2.2 decompression

I create a new directory , Move the compressed package to this directory . After that, the effect of decompression is as follows .

2.3 Compressed Directory

This is a very happy operating feature , Default input , Compressing a directory and all the files under it is as simple as directly compressing a file .

2.4 7za command

This command is actually dedicated to compression 7z command , and 7z It can also be used for decompression .

2.5 Volume compression

7z The volume compression of is also very simple , It's just adding a parameter to ordinary compression .-vxxxb, among xxx Numerical value , Unit is byte . If you want to use other units , The format is similar ,k、m、g You can use it later . But we need to pay attention , The parameters here are all lowercase .

I found the corresponding information from the help information . Next , Try to compress the folder above into a volume 500KB The volume of the book .

2.6 Decompress the volume

Another simple operation , It's the same as processing a file . Here, you only need to pass in the name of the first sub volume , Other operations are done automatically , It is very convenient .

2.7 Compress into the specified format , such as zip

Nothing special , Just add a parameter control . above , I realized a zip Sub volume compression . And decompression is also the same processing method as the previous volume decompression .

Single volume compression , It's actually a simpler operation .

such ,7z The basic usage of the tool, which is more practical for me, has been sorted out . Maybe , From then on, my server This is the most commonly used compression and decompression software on .