day2——困仙儿

pwd

bio16@VM-0-6-ubuntu:~$ pwd
/home/bio16

mkdir&ls

bio16@VM-0-6-ubuntu:~$ mkdir homework
bio16@VM-0-6-ubuntu:~$ ls
biosoft  homework  project  src  tmp

cd&rm

bio16@VM-0-6-ubuntu:~/tmp$ ls
hello_world.txt
bio16@VM-0-6-ubuntu:~/tmp$ mkdir huahua
bio16@VM-0-6-ubuntu:~/tmp$ cd huahua/
bio16@VM-0-6-ubuntu:~/tmp/huahua$ touch huahua.txt
bio16@VM-0-6-ubuntu:~/tmp/huahua$ cd ..
bio16@VM-0-6-ubuntu:~/tmp$ rm -r huahua
bio16@VM-0-6-ubuntu:~/tmp$ ls
hello_world.txt

cat

bio16@VM-0-6-ubuntu:~/tmp$ cat hello_world.txt 
it is fun
but 
I still wonder 
how hard it could be 
bio16@VM-0-6-ubuntu:~/tmp$ head -n2 hello_world.txt 
it is fun
but

cp&mv

bio16@VM-0-6-ubuntu:~/tmp$ cp hello_world.txt  file.txt
bio16@VM-0-6-ubuntu:~/tmp$ mv file.txt ~
bio16@VM-0-6-ubuntu:~/tmp$ cd ~
bio16@VM-0-6-ubuntu:~$ ls
biosoft  file.txt  homework  project  src  tmp
bio16@VM-0-6-ubuntu:~$ mv file.txt new_file.txt
bio16@VM-0-6-ubuntu:~$ ls
biosoft  homework  new_file.txt  project  src  tmp
day2.jpeg
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