-a Displays all connections and listening ports.(显示所有连接和监听端口) -e Displays
Ethernet statistics. This may be combined with the -s
option.(显示以太连接,可以与-s连用) -n Displays addresses and port numbers in
numerical form.(显示地址和端口) -p proto Shows connections for the protocol
specified by proto; proto may be TCP or UDP. If used with the -s option to
display per-protocol statistics, proto may be TCP, UDP, or IP. -r
Displays the routing table. -s Displays per-protocol statistics. By default,
statistics are shown for TCP, UDP and IP; the -p option may be used to
specify a subset of the default. interval Redisplays selected
statistics, pausing interval seconds between each display. Press CTRL+C to
stop redisplaying statistics. If omitted, netstat will print the current
configuration information once.(interval是设定一个刷新时间,在间隔时间内暂停,按CTRL+C停止……)