Learning linux-4
Advanced commands of vim:
Commands in command line mode
| instruction | meaning |
|---|---|
| shift+6 | Move the cursor to the first column of the line where the cursor is |
| shift+4 | Move the cursor to the last column of the line where the cursor is |
| shift+g | Move the cursor to the last line of the file |
| gg | Move the cursor to the first line of the file |
| num shift+g | Move the cursor to the first column of row num |
| shift+f | Page down |
| shift+b | Page up |
| shift+h | Move the cursor to the first column at the beginning |
| shift+m | Move the cursor to the first column of the middle row |
| shift+l | Move the cursor to the first column of the last line |
| dd | Delete the line where the cursor is |
| is iit | Delete the num line below the cursor (delete multiple lines) |
| u | Undo the last operation |
| Ctrl+r | Redo once undo |
| yy | Copy the line where the cursor is |
| p | Paste |
| d line number shift+g | Delete the content from the line where the cursor is to the specified line number |
| y line number shift+g | Copy the content between the line where the cursor is located and the specified line number |
| r | Replace the character under the cursor |
| cw | Delete a word and enter insert mode |
| shift+c | Delete the content from the current cursor to the end of the line and enter insert mode |
| cc | Delete the line where the current cursor is located, and enter insert mode |
The expanded content of the last line mode:
| instruction | meaning |
|---|---|
| set no | Show line number |
| set nonu | Cancel line number |
| set nohlsearch | Cancel highlight |
| /string | Full text search string character string n Move the cursor to the next |
| ?string | Full text search string character string n Move the cursor to the next |
| n,m $/oldstring/newstring | Replace the first oldstring in each line |
| n,m $oldstring/newstring | Full text replacement |
As this part of the content is not convenient to use pictures to display one by one, it is recommended to directly practice it, and it will be more touching.
Supplement to the cat command:
| instruction | meaning |
|---|---|
| cat filename | Show file content |
| cat a.c b.c > c.c | Combine the contents of ac and bc into cc |
| cat >filename | Write the content entered by the user in the terminal to the file |
Part of the configuration about vim:
如果希望每次进入文件编辑时，都可以是设置好的，那么就需要在终端中输入 vim ~/.vimrc 进入当前用户的vim配置文件中，当然如果需要修改所有用户的vim配置的话，就需要在root用户下输入 vim /etc/vimrc ，就可以进入设置了。
以下是部分的配置指令：
| 指令 | 含义 |
|---|---|
| set nu | 显示行号 |
| set autoindent | 设置自动对齐 |
| set smartindent | 设置智能对齐 |
| set tabstop=4 | 设置tab缩进四格 |
| set shiftwidth=4 | 设置自动缩进四格 |
| set mouse=a | 设置鼠标有效 |
| set showmatch | 设置自动匹配 |
| set cindent | 设置c语言等结构化程序设计语言的缩进方式 |
| syntax on | 高亮显示 |
