free 命令可选参数-b,-k,-m,-g show output in bytes, KB, MB, or GB-h human readable output (automatic unit scaling)-l show detailed low and high memory statistics-o use old format (no -/ buffers/cache line)-t display total for RAM swap-s …The post 使用 Free 命令查看 Linux 服务器内存使用状况(-/+ buffers/cache 详解) first app……