监听本机tcp和udp的端口

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#!/bin/bash #tcp part port1=`netstat -an|grep LISTEN|egrep "0.0.0.0|:::"|awk '/^tcp/ {print $4}'|awk -F: '{print $2$4}'|sort -n` echo "TCP state:" echo "--------------------------------" echo "PORT      PID     COMMAND" for a in $port1 do b=`lsof -n -i:$a|grep TCP|grep LISTEN|grep IPv4|awk '{printf("%d\t%s\n"),$2,$1}'` echo "$a        $b" done echo "--------------------------------"   #udp part echo "" port2=`netstat -an|grep udp|awk '{print $4}'|awk -F: '{print $2}'|sed '/^$/d'|sort -n` echo "UDP state:" echo "--------------------------------" echo "PORT      PID     COMMAND" for a in $port2 do b=`lsof -n -i:$a|grep UDP|grep IPv4|awk '{printf("%d\t%s\n"),$2,$1}'` if [ -n "$b" ];then echo "$a        $b" fi done echo "--------------------------------"   exit 0