请参照以下文章
shell常用命令:https://www.cnblogs.com/pengtangtang/articles/PengTangTang_linux_base_one.html
通配符:https://www.cnblogs.com/pengtangtang/articles/PengTangTang_Linux_Base_TongPeiFu.html
输入输出重定向:https://www.cnblogs.com/pengtangtang/articles/PengTangTang_Linux_ChongDingXiang.html
原文:https://www.cnblogs.com/pengtangtang/p/PengTangTang_linux_base.html