常用命令:
    目录操作:

    1. ls
    2. cd
    3. cp
    4. mv
    5. rm
    6. mkdir
    7. pwd
    8. ln

    文件操作:

    1. cat
    2. vim
    3. more
    4. less
    5. head
    6. tac
    7. tail

    打包压缩:

    1. tar -zxvf [] 解压缩
    2. tar -cxvf [] 打包压缩

    进程:

    1. ps -ef | grep docker
    2. top
    3. ps -aux | grep linux
    4. lsof -i:8000
    5. netstat

    查找:

    1. whereis
    2. which
    3. find
    4. locate

    内容操作:

    1. grep
    2. cut
    3. w

    系统:

    1. who
    2. shutdown
    3. history