grep

打算在跳板机上写一个shell脚本，批量检查远程服务器上的main进程是否在健康运行中。 先找出其中一台远程机器，查看main进程运行情况 1 2 3 4 5 [root@two002 tmp] # ps -ef|grep main root 23448 23422 0 11:40 pts /0 00:00:00 grep --color=auto main [root@two002 tmp] # ps -ef|grep main|grep -v grep|wc -l 0 shell检查脚本如下 1 2 3 4 5 6 7 8 [root@two002 tmp] # cat /tmp/main_check.sh #!/bin/bash NUM=$( ps -ef| grep main| grep - v grep | wc -l) if [ $NUM - eq 0 ]; then echo "It's not good! main is stoped!" else echo "Don't worry! main is running!" fi 执行脚本 1 2 3 4 5 6 7 8 9 10 11 12 [root@two002 tmp] # sh -x /tmp/main_check.sh ++ grep main ++ grep - v grep ++ wc -l ++ ps

1,查看apache进程: ps aux | grep httpd | grep -v grep | wc -l // ps aux是显示所有进程和其状态。 2,查看80端口的tcp连接: netstat -tan | grep "ESTABLISHED" | grep ":80" | wc -l 3,通过日志查看当天ip连接数，过滤重复: cat access_log | grep "19/May/2011" | awk '{print $2}' | sort | uniq -c | sort -nr 4,当天ip连接数最高的ip都在干些什么(原来是蜘蛛): cat access_log | grep "19/May/2011:00" | grep "61.135.166.230" | awk '{print $7}' | sort | uniq -c | sort -nr | head -n 10 5,当天访问页面排前10的url: cat access_log | grep "19/May/2010:00" | awk '{print $7}' | sort | uniq -c | sort -nr | head -n 10 6,用tcpdump嗅探80端口的访问看看谁最高 tcpdump -i eth0 -tnn dst port 80 -c 1000 | awk -F".

加检测: 1.ip ping curl wget 检测 192.168.11.1444 ping -c 1 -w 1 192.168.11.21444 2.ip 加 端口 telnet echo -e "\n" | telnet 192.168.11.2144 13000 | grep Connected 3.进程 ps aux|grep -v grep|grep nginx echo $? 4.log 基于状态码的检测: tail -n100 /home/iqiyi4logs/iq444iyi444.log|awk -F", '{ print $8}'|sort -nr|uniq -c 一共有什么状态 有几个 tail -n100 /home/iqiyi4logs/iq4iy44i.log|awk -F", '{ print $8}'|grep "200"|wc -l 200的状态有几个 基于单位时间段内请求的访问 如果次数未达kpi异常 报警 tail -n1000 /home/iqiyilogs/iqiyi.log|grep "14/Jan/2020:16:54"|wc -l 来源： https://www.cnblogs.com/djwhome/p/12198242.html