摘要：1. ls 命令 查看当前目录下可见的文件、文件夹及其相关权限常用参数：-l 列表式查看 -al 查看所有，包括隐藏的文件、文件夹 [root@qinshengfei bin]# ls --color 以彩色显示 [root@qinshengfei bin]# ls -l 详情列出目录文件 [roo 阅读全文

摘要：One of the configured repositories failed (Unknown), and yum doesn't have enough cached data to continue. At this point the only safe thing yum can do 阅读全文