# netstat -an| grep ':80' | awk '/tcp/{a[$NF]++}END{for (i in a) print i,a[i]}'

# echo "当前并发数：`netstat -ant | grep :80 | awk '{print $5}' | awk -F":" '{print $1}'| sort | uniq -c | sort -r -n | awk 'BEGIN{total=0}{total+=$1}END{print total}'`";

当前并发数：8

贴一下统计服务器并发数统计脚本，根据网上的信息加上自己的需求整理的，把IP换为自己的IP地址即可，统计的是80端口的访问并发适用于Linux平台。 去掉最后的awk段就可以统计当前每个IP的访问数

# echo "当前并发数：`netstat -nt | grep IP:80 | awk '{print $5}' | awk -F":" '{print $1}'| sort | uniq -c | sort -r -n | awk 'BEGIN{total=0}{total+=$1}END{print total}'`";

#统计并发

# echo "当前并发数：`netstat -nt | grep :80  | awk '{print $5}' | awk -F":" '{print $1}'| sort | uniq -c | sort -r -n | awk 'BEGIN{total=0}{total+=$1}END{print total}'`";

统计并发脚本：

# cat Concurrent.sh

#!/bin/bash

while :

do

echo "当前并发数：`netstat -nt | grep :80  | awk '{print $5}' | awk -F":" '{print $1}'| sort | uniq -c | sort -r -n | awk 'BEGIN{total=0}{total+=$1}END{print total}'`" >> /opt/logs/Concurrent/logs/Concurrent.txt

sleep 1

done 

[root@~]# cat Concurrent_date.sh

#!/bin/bash

Date=`date +%F`

kill -9 ` ps -ef | grep Concurrent.sh  | grep -v grep | awk '{print $2}'`

sleep 5

echo "==============$Date==============" >> /opt/logs/BF_SUM.txt

sort -r /opt/logs/Concurrent/logs/Concurrent.txt |head >> /opt/logs/BF_SUM.txt

echo "==============END==============" >> /opt/logs/BF_SUM.txt

mv /opt/logs/Concurrent/logs/Concurrent.txt /opt/logs/Concurrent/logs/Concurrent.${Date}.txt

nohup /opt/logs/Concurrent/Concurrent.sh & 

find /opt/logs/Concurrent/logs/ -type f -name "*.txt" -mtime +7 -exec rm -r {} \;