学习linux

1. 什么是linux

就是一个操作系统

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2.阿里云服务器召唤linux

2.1 百度网盘下载xshell并安装

2.2 登录后显示

Connecting to 42.192.49.166:22...
Connection established.
To escape to local shell, press 'Ctrl+Alt+]'.

Welcome to Ubuntu 18.04.4 LTS (GNU/Linux 4.15.0-118-generic x86_64)

3.练习使用linux

3.1 显示当前路径

bio08@VM-0-6-ubuntu:~$ pwd
/home/bio08
bio08@VM-0-6-ubuntu:~$ 

3.2 创建文件夹

bio08@VM-0-6-ubuntu:~$ mkdir biosoft #创建biosoft文件夹
bio08@VM-0-6-ubuntu:~$ mkdir project #创建project文件夹
bio08@VM-0-6-ubuntu:~$ mkdir tmp #创建tmp文件夹
bio08@VM-0-6-ubuntu:~$ mkdir src #创建src文件夹

3.3 显示列表

bio08@VM-0-6-ubuntu:~$ ls
biosoft  Nice  project  src  tmp

3.4 进入目录

bio08@VM-0-6-ubuntu:~$ mkdir rm_test
bio08@VM-0-6-ubuntu:~$ cd rm_test
bio08@VM-0-6-ubuntu:~/rm_test$ touch doodle.txt

3.5 删除操作目录

bio08@VM-0-6-ubuntu:~/rm_test$ rm doodle.txt
bio08@VM-0-6-ubuntu:~/rm_test$ 
bio08@VM-0-6-ubuntu:~/rm_test$ cd
bio08@VM-0-6-ubuntu:~$ rmdir rm_test
bio08@VM-0-6-ubuntu:~$ 

3.6 新建脚本

bio08@VM-0-6-ubuntu:~$ cd tmp
bio08@VM-0-6-ubuntu:~/tmp$ vi hello.txt
bio08@VM-0-6-ubuntu:~/tmp$ cat hello.txt
nice to meet you!
it is a beautiful world!
hope you have a great day!
bio08@VM-0-6-ubuntu:~/tmp$ head -n 2 hello.txt
nice to meet you!
it is a beautiful world!

3.7 复制文件

bio08@VM-0-6-ubuntu:~/tmp$ cp hello.txt new_file.txt
bio08@VM-0-6-ubuntu:~/tmp$ cat new_file.txt
nice to meet you!
it is a beautiful world!
hope you have a great day!

3.8 移动与重命名

bio08@VM-0-6-ubuntu:~/tmp$ mv new_file.txt home.txt
bio08@VM-0-6-ubuntu:~/tmp$ ls
hello  hello.txt  home.txt
bio08@VM-0-6-ubuntu:~/tmp$ mv home.txt ~/
bio08@VM-0-6-ubuntu:~/tmp$ ls
hello  hello.txt
bio08@VM-0-6-ubuntu:~/tmp$ cd
bio08@VM-0-6-ubuntu:~$ ls
biosoft  home.txt  Nice  project  src  tmp