netstat -nat|awk '{print awk $NF}'|sort|uniq -c|sort -n

#输出范例：
#      1 CLOSE_WAIT
#      1 established)
#      1 State
#     10 LISTEN
#    217 LAST_ACK
#    298 CLOSING
#    480 SYN_RECV
#   1592 FIN_WAIT2
#   1754 ESTABLISHED
#   3003 TIME_WAIT
#   5411 FIN_WAIT1