Linux基础教程2-1|Linux系统目录结构& Linux命令基础

 
第八星系人气爱
2024-05-20
作者:第八星系-张依如
邮箱:771352508@qq.com

前言
安装完学习Linux所需的软件后,将进入Linux基础命令的学习,但在学习之前,我们先来了解一下Linux操作系统关于目录结构和命令的一些基础常识,以为后面的学习打下基础。
01|目录结构
与Windows系统的多个盘符不同,Linux的目录结构是树形结构,只有一个根目录/,没有盘符这个概念,所有文件都在它下面。
Linux系统的路径表达式
Linux系统中,路径之间的层级关系,使用:/来表示
Windows系统中,路径间的层级关系,用:\表示

如:下图框起来的路径就表示为:/usr/local/hello.txt
注意:开头的/表示根目录;后面的/表示层级关系

02|Linux命令基础
1.什么是命令、命令行?
命令行:Linux终端(Terminal),一种命令提示符页面。
命令:Linux程序。一个命令本质上是Linux的一个程序。在命令行(终端)中提供字符化的反馈来帮助我们操作操作系统。

2.Linux命令基础格式
在Linux中,命令有其通用的格式,command [-options][parameter]
command:命令本身
-options:[可选,非必填]命令的一些选项,可以通过选项控制命令的行为细节
parameter:[可选,非必填]命令参数,用于控制命令的指向目标等
语法中的[],表示可选的意思

示例:
ls -l/home/zyr,ls是命令本身,-l是选项,/home/zyr是参数
  意思是以列表的形式,显示/home/zyr目录内的内容
cp -r test1 test2,cp是命令,-r是选项,test1和test2是参数
  意思是复制文件夹test1成为test2

下一章节我们将开始正式学习Linux基础命令
欢迎大家批评指正~

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