linux命令回顾

今天学了几个命令，在这里回顾一下：

ls -l -a -F

Alias li='ls -l'

UserAdd user2

SU - User2

touch /home/cheney/a.txt

vi /home/cheney/a.txt

i = insert, ESC to exit the insert mode, press : enter the command text mode, wq to save and exit, q!to exit without save.

rm -r a.txt

mkdir folderTest

rmdir folderTest, only for the folder that did not contain anything.

cd ~/.bashrc to edit the alias when the system is rebooted

cp /home/a /etc/b, copy a to /etc/ and changed its name to b.