- sudo passwd macrotea
- ls
- ls --help
- ls -a
- ls -al
- clear
- ctrl + f : move front one char
- ctrl + b : move back one char
- ctrl + e : move end of current line
- ctrl + d : delete current char
- alt + u : upper the chars
- alt + l : lower the chars
- ctrl + k : cut off to end
- ctrl + u : cut off to start
- ctrl + y : paste your cut content
- history
- history 5
- alias ls='ls --color=auto -l'
- alias cls='clear'
- pwd
- env
- echo $PWD
- echo $PATH
- whereis ls
ok,thanks for your reading,bye