Linux and security practices five--Character set encoding

Linux and security practices five--Character set encoding

One, ASCII code

The hexadecimal value corresponding to the English letter lxq is found in the table:

4c 58 51

Enter the command in the terminal: Vim Test1.txt

Enter the command on the VIM page:%! Xxd

Use command after losing:%! The following results can be seen when Xxd-r is saved:

Exit the vim Editor and enter the command in the terminal:cat test.txt can view content in test.txt

Second, gb2312 code

Find the hexadecimal value corresponding to the Li Sheli in the encoding table:

C0ee d1a9 e7f9

In the vim editing, the terminal encoding method is modified to gb2312, in the terminal options above the end of the modification,:

After modification, use the command locale -a|grep zh_cn to view the currently owned Chinese character set:

Next, change the character set to the default character set, using the cross-platform 16-HexEdit editor.

Enter the command in the terminal:hexedit text2.txt

As you can see, the interface is friendly, but it's edited in bytes. Enter content into which

Ctrl+w Save, Ctrl+x exit

Change the character set to gb2312 again, and use the Cat directive to view the content

Iii.Utf-8

Find the hexadecimal value corresponding to the Li Sheli in the encoding table:

e69d8e E99baa E790a6

Because the virtual machine default character set is Utf-8, we can see the results in the terminal interface without any setup.

Enter the command in the terminal: Vim Text3.txt

Enter the command on the VIM page:%! Xxd

Use command after losing:%! The following results can be seen when Xxd-r is saved:

Exit the vim Editor and enter the command in the terminal:cat test3.txt can view content in text3.txt

Linux and security practices five--Character set encoding