题解 | #netstat练习4-输出和3306端口建立连接

#!/bin/bash

a=`cat nowcoder.txt | grep 3306 | awk '{print $5}' | awk -F ':' '{print $1}' | sort | uniq -c | awk 'BEGIN{sum=0;}{sum=sum+$1;}END{print sum}'`
b=`cat nowcoder.txt | grep 3306 | awk '{print $5}' | awk -F ':' '{print $1}' | sort | uniq -c | wc -l`
echo "TOTAL_IP $b"
echo "ESTABLISHED $a"
echo "TOTAL_LINK $a"