souhu yum服务器CentOS-Base.repo 将$releasever替换为操作系统版本号 # CentOS-Base.repo # # The mirror system uses the connecting IP address of the client and the # update status of each mirror to pick mirrors that are updated to and # geographically close to the cl
inux下tree命令详解---linux以树状图逐级列出目录的内容命令 #############################################################################命令格式 tree <选项或者是参数> <分区或者是目录> #############################################################################(1) tree 最长使用的参数或者是选项
useradd 命令 Usage: useradd [options] LOGIN useradd -D useradd -D [options] Options: -b, --base-dir BASE_DIR base directory for the home directory of the new account -c, --comment COMMENT GECOS field of the new account -d, --home-dir HOME_DIR home dire