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瑞芯微——Linux的常用指令VI

  • 2026-03-08 07:42:56
瑞芯微——Linux的常用指令VI

瑞芯微--Linux的常用指令VI

作为一个程序员,尤其是Linux程序员,那么一些常见的Linux指令肯定是需要知道的,今天介绍的就是我认为在Linux指令中最重要的一个指令,它就是VI。

首先介绍一下vi,在我看来,它就是一个无所不能的高手,不论是你文件,脚本,还是目录,它统统都能打开。

下面开始看例子

在这个目录中,有目录--test 、有脚本--Makefile 、有文件test.py,vi统统都能够打开。

我们可以先通过vi编辑目录,能够发现他可以直接打开,打开也会有提示,这是一个文件。这也说明了一句话,Linux中一切皆是文件

接着可以试试vi编辑脚本

看到这里,相信大家已经知道VI的强大了。接下面就看看VI的三种重要模式

命令模式(Command Mode)

输入模式(Insert Mode)

命令行模式(Command-Line Mode)

1. 命令模式

顾名思义,这个模式是让我们输入命令的,那怎么才能够进入这个模式呢?其实很简单。当我们使用vi打开一个文件的时候,此时他默认进入的就是命令模式。如图所示

在命令行模式中,有哪些命令可以使用呢?

 我主要列出我常使用的一些指令: 

1、i:切换到输入 

视频演示如下

2、dd: 剪切 

视频演示如下

带参数操作,例如2dd,示例如下

3、yy:复制 

视频演示如下

4、张贴:

视频演示如下

 5、u -- 撤销上一次操作。 

6、Ctrl + r -- 重做上一次撤销的操作。 具体可以看视频,不仅仅如此,这dd 和 yy还可以带参数

2. 输入模式

没有什么好讲的,在输入模式下,可以将其理解为一个记事本,可以随便的输入一些信息。

3. 命令行模式

我习惯叫他为底行模式,因为最终输入的地方是在底部的那一行的。 底行模式常见的指令有

 :w:保存文件 :

q退出文件 :

q!强制退出 :

wq保存退出 :

wq!保存强制退出

4. 模式之间的转换

当我们通过vi打开一个文件的时候,此时属于命令模式,这个时候如果通过输入i就会进入到输入模式.

如果在输入模式按esc就会进入命令模式,在命令模式输入:则会进入底行模式 具体我们可以参考下面这张图,

vi的使用大致就讲到这里了,大家感兴趣的可以在评论区交流

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  139. /yingpanguazai/ssd/ssd1/www/f.mffb.com.cn/runtime/temp/067d451b9a0c665040f3f1bdd3293d68.php ( 11.98 KB )
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  1. CONNECT:[ UseTime:0.000769s ] mysql:host=127.0.0.1;port=3306;dbname=f_mffb;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.001354s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000624s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000579s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.001458s ]
  6. SELECT * FROM `set` [ RunTime:0.000516s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.001365s ]
  8. SELECT * FROM `article` WHERE `id` = 478224 LIMIT 1 [ RunTime:0.036228s ]
  9. UPDATE `article` SET `lasttime` = 1774600898 WHERE `id` = 478224 [ RunTime:0.001279s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 67 LIMIT 1 [ RunTime:0.000582s ]
  11. SELECT * FROM `article` WHERE `id` < 478224 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.004512s ]
  12. SELECT * FROM `article` WHERE `id` > 478224 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.001873s ]
  13. SELECT * FROM `article` WHERE `id` < 478224 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.039256s ]
  14. SELECT * FROM `article` WHERE `id` < 478224 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.016727s ]
  15. SELECT * FROM `article` WHERE `id` < 478224 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.015649s ]
0.289396s