Linux各目录及每个目录的详细介绍
https://blog.csdn.net/u013239236/article/details/48845251
Linux常用命令
https://blog.csdn.net/zzcv_/article/details/2145362
Linux常用20个命令
https://blog.csdn.net/xufei512/article/details/53321980
Linux命令大全
http://www.runoob.com/linux/linux-command-manual.html
Linux视频学习
https://www.jikexueyuan.com/course/515_2.html?ss=1
