View the TCP/IP statistics applet code in linux

This article details linux viewing TCP/IP statistics applet code

#! /Usr/bin/env python # coding: utf8import commandsimport timeimport sysdef main (count_list ): print "quantity \ t \ tIP address \ t connection status" for I in count_list: for x in I. split (): if len (x)> 14: print "% s \ t" % x, else: print "% s \ t" % x, printif _ name _ = '_ main _': if len (sys. argv)> 1: try: while 1: command_str = "netstat-tan | grep '" "+ sys. argv [1] + "" '| awk' {print $ (NF-1), $ NF} '| grep-E' [0-9 }\. [0-9] {1, 3 }\. [0-9] {1, 3 }\. [0-9] {} '| awk-F [\:]' {print $(NF-2 ), $ NF} '| awk' {ip [$0] ++} END {for (I in ip) print ip [I], I | "sort-nr | head-n 20"} '2>/dev/null "count_list = commands. getstatusoutput (command_str) [1]. split ("\ n") main (count_list) time. sleep (5) print "-------------------------------------------------" failed t: pass else: try: while 1: command_str = "" netstat-tan | awk '{print $(NF-1 ), $ NF} '| grep-E' [0-9] {1, 3 }\. [0-9] {1, 3 }\. [0-9] {1, 3 }\. [0-9] {} '| awk-F [\:]' {print $(NF-2 ), $ NF} '| awk' {ip [$0] ++} END {for (I in ip) print ip [I], I | "sort-nr | head-n 20"} '2>/dev/null "count_list = commands. getstatusoutput (command_str) [1]. split ("\ n") main (count_list) time. sleep (5) print "-------------------------------------------------------" failed t: pass

Execution result

[Root @ duyunlong-100-70test] # tcpcheck quantity IP address connection status 313 172.16.6.11 ESTABLISHED 189 172.16.6.13 255.176 255.255.255.64 255.255.50 255.255.43 255.255.31 255.255.31 172.16.1.62 ESTABLISHED 31 172.16.1.61 listen 30 172.16.3.81 ESTABLISHED 30 172.16.3.80 ESTABLISHED 30 172.16.3.66 255.30 172.16.3.21 255.30 255.255.30 255.30172.16.1.103 255.30 172.16.1.101 255.30 172.16.1.102 255.30 172.16.1.101

Or you can follow the parameters

[Root @ duyunlong-100-70test] # tcpcheck TIME_WAIT quantity IP address connection status 15 172.16.3.21 TIME_WAIT 15 172.16.3.20 TIME_WAIT 2 172.16.6.24 TIME_WAIT

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