Rewrite vim configuration file VIMRC to implement display line number, syntax highlighting, auto Indent function

The configuration file for vim in Ubuntu is stored in the/etc/vim directory with the configuration file named VIMRC

In the terminal, enter the following command to edit the VIMRC configuration file:
sudo vim/etc/vim/vimrc or sudo gedit/etc/vim/vimrc this file needs to be accessed with root access, otherwise only the Read permission can use sudo temporarily, of course, SU can also

1, display line number

Add a new line at the end of the file, enter the Set Nu plus line number, remove this sentence to suppress the line number

2. Syntax highlighting
In the file, find "syntax on this line, remove the preceding double quotes", double quotation marks are the meaning of the comment

3. Auto Indent

Add a line at the end of the file, enter set Autoindent
On the Add line, enter set Cindent
Where autoindent is automatically indented; Cindent is automatically indented for C language syntax

Note: If you set the above settings, VIM does not make the corresponding action, then please upgrade your vim to the latest version, generally as long as the terminal input the following command: sudo apt-get install vim