基于云服务器的linux 基础指令操作

由于自己用的是mac pro，所以可直接打开terminal, 然后键入 生信星球 发的SSH和密码

我觉得这个步骤像是在开机一样🤔

Last login: Tue Mar 31 17:40:38 on ttys000
wo shi ni die de SuperMacBook-Pro:~ apple$ ssh bio13@122.51.158.112
bio13@122.51.158.112's password: 
Welcome to Ubuntu 18.04.1 LTS (GNU/Linux 4.15.0-54-generic x86_64)

 * Documentation:  https://help.ubuntu.com
 * Management:     https://landscape.canonical.com
 * Support:        https://ubuntu.com/advantage

  System information as of Tue Mar 31 21:05:06 CST 2020

  System load:  0.0                Processes:           97
  Usage of /:   40.1% of 49.15GB   Users logged in:     1
  Memory usage: 24%                IP address for eth0: 172.17.0.10
  Swap usage:   0%


 * Canonical Livepatch is available for installation.
   - Reduce system reboots and improve kernel security. Activate at:
     https://ubuntu.com/livepatch
Failed to connect to https://changelogs.ubuntu.com/meta-release-lts. Check your Internet connection or proxy settings


*** System restart required ***

The programs included with the Ubuntu system are free software;
the exact distribution terms for each program are described in the
individual files in /usr/share/doc/*/copyright.

Ubuntu comes with ABSOLUTELY NO WARRANTY, to the extent permitted by
applicable law.

然后可以看到以下代码，相当于进入了可视化界面的“桌面”

bio13@VM-0-10-ubuntu:~$

在上述代码后面输入 pwd 就会进入自己的 “磁盘或总目录” /home/bio13

bio13@VM-0-10-ubuntu:~$ pwd
/home/bio13

建立自己的4个目录或文件夹, 并显示出来
第1个: r-language
第2个: python
第3个: statistics
第4个: database

bio13@VM-0-10-ubuntu:~$ mkdir r-language
bio13@VM-0-10-ubuntu:~$ mkdir python
bio13@VM-0-10-ubuntu:~$ mkdir statistics
bio13@VM-0-10-ubuntu:~$ mkdir database
bio13@VM-0-10-ubuntu:~$ ls
database  python  r-language  statistics

进入目录 r-language ，然后 建立并编写 code.txt 这个文本（需要输入小写字母 i 表示插入后才能开始书写）

bio13@VM-0-10-ubuntu:~$ cd r-language
bio13@VM-0-10-ubuntu:~/r-language$ vi code.txt

在 terminal 显示 此文本

bio13@VM-0-10-ubuntu:~/r-language$ cat code.txt
Money is not evil by itself
It is just paper with perceived value to obtain other things we value in other ways
If not money – what is evil you may ask?
Evil is the unquenchable, obsessive and moral bending desire for more
Evil is the bottomless, soulless and obsessive-compulsive pursuit of some pot of gold at the end of some rainbow which doesn’t exist
Evil is having a price tag for your heart and soul in exchange for financial success at any cost
Evil is trying to buy happiness, again and again until all of those fake, short lived mirages of emotions are gone
Make more time
I’m not saying you can’t be financially successful
I’m saying have a greater purpose in life well beyond the pursuit of financial success
Your soul is screaming for you to answer your true calling

在terminal 显示此文本的 前3行（head 默认输出前10行，tail 默认输出后10行，后面加上-n 自定义输出几行）

bio13@VM-0-10-ubuntu:~/r-language$ head -n 3 code.txt
Money is not evil by itself
It is just paper with perceived value to obtain other things we value in other ways
If not money – what is evil you may ask?

在terminal 显示此文本的 后4行（head 默认输出前10行，tail 默认输出后10行，后面加上-n 自定义输出几行）

bio13@VM-0-10-ubuntu:~/r-language$ tail -n 4 code.txt
I’m not saying you can’t be financially successful
I’m saying have a greater purpose in life well beyond the pursuit of financial success
Your soul is screaming for you to answer your true calling

将此code.txt文本复制并同时改名为new-code.txt文本，然后在r-language目录里将两个文本显示出来

bio13@VM-0-10-ubuntu:~/r-language$ cp code.txt new-code.txt
bio13@VM-0-10-ubuntu:~/r-language$ ls
code.txt  new-code.txt

将此new-code.txt文本移动到总目录（/home/bio13）下的python目录（即 /home/bio13/python/ 这条路径）

bio13@VM-0-10-ubuntu:~/r-language$ mv new-code.txt /home/bio13/python/

回到 python 目录后，显示此目录下的new-code.txt文本

bio13@VM-0-10-ubuntu:~$ cd python
bio13@VM-0-10-ubuntu:~/python$ ls
new-code.txt

返回上一级目录（在此python目录的上级目录是总目录/home/bio13/）, 显示总目录下的4个目录

bio13@VM-0-10-ubuntu:~/python$ cd -
/home/bio13
bio13@VM-0-10-ubuntu:~$ ls
database  python  r-language  statistics

删除两个空目录，删除两个非空目录，然后显示

bio13@VM-0-10-ubuntu:~$ rmdir statistics database
bio13@VM-0-10-ubuntu:~$ rm -r python r-language
bio13@VM-0-10-ubuntu:~$ ls

总的来说，我感觉就是 输入指令 来代替鼠标和 可视化界面 ；以下是基础指令的思维导图和总的代码

思维导图

总代码

bio13@VM-0-10-ubuntu:~$ pwd
/home/bio13
bio13@VM-0-10-ubuntu:~$ mkdir r-language
bio13@VM-0-10-ubuntu:~$ mkdir python
bio13@VM-0-10-ubuntu:~$ mkdir statistics
bio13@VM-0-10-ubuntu:~$ mkdir database
bio13@VM-0-10-ubuntu:~$ ls
database  python  r-language  statistics
bio13@VM-0-10-ubuntu:~$ cd r-language
bio13@VM-0-10-ubuntu:~/r-language$ vi code.txt
bio13@VM-0-10-ubuntu:~/r-language$ cat code.txt
Money is not evil by itself
It is just paper with perceived value to obtain other things we value in other ways
If not money – what is evil you may ask?
Evil is the unquenchable, obsessive and moral bending desire for more
Evil is the bottomless, soulless and obsessive-compulsive pursuit of some pot of gold at the end of some rainbow which doesn’t exist
Evil is having a price tag for your heart and soul in exchange for financial success at any cost
Evil is trying to buy happiness, again and again until all of those fake, short lived mirages of emotions are gone
Make more time
I’m not saying you can’t be financially successful
I’m saying have a greater purpose in life well beyond the pursuit of financial success
Your soul is screaming for you to answer your true calling

bio13@VM-0-10-ubuntu:~/r-language$ head -n 3 code.txt
Money is not evil by itself
It is just paper with perceived value to obtain other things we value in other ways
If not money – what is evil you may ask?
bio13@VM-0-10-ubuntu:~/r-language$ tail -n 4 code.txt
I’m not saying you can’t be financially successful
I’m saying have a greater purpose in life well beyond the pursuit of financial success
Your soul is screaming for you to answer your true calling

bio13@VM-0-10-ubuntu:~/r-language$ cp code.txt new-code.txt
bio13@VM-0-10-ubuntu:~/r-language$ ls
code.txt  new-code.txt
bio13@VM-0-10-ubuntu:~/r-language$ mv new-code.txt /home/bio13/python/
bio13@VM-0-10-ubuntu:~/r-language$ cd -
/home/bio13
bio13@VM-0-10-ubuntu:~$ cd python
bio13@VM-0-10-ubuntu:~/python$ ls
new-code.txt
bio13@VM-0-10-ubuntu:~/python$ cd -
/home/bio13
bio13@VM-0-10-ubuntu:~$ ls
database  python  r-language  statistics
bio13@VM-0-10-ubuntu:~$ rmdir statistics database
bio13@VM-0-10-ubuntu:~$ rm -r python r-language
bio13@VM-0-10-ubuntu:~$ ls

Day-2 Joker_ztt

Day-2 Joker_ztt

基于云服务器的linux 基础指令操作

思维导图

总代码