期末作业不会求求帅气的哥哥美丽的姐姐帮帮

想不挂科去百度吧，csdn技能树都有这玩意

https://blog.csdn.net/l1727377/article/details/132452022

https://man.archlinux.org/man/mkdir.1.zh_CN

cd /tmp
mkdir {student,teacher}
cd student
vi stu1
i
happy everyday!
:x
mv stu1 ../teacher/stu2

问AI