shell判断进程启动时间后kill进程

#!/bin/bash
#检测"API_NetDemo"进程运行时间超过10分钟就kill掉
#PS:是程序运行时间（即进程启动到现在的时间），不是占用cpu的时间
#Author by Qfeian
function check_time()
        {
        time_subroutine=$(getconf CLK_TCK)
        start_time=$(awk '{print $22}' /proc/$1/stat)
        sys_uptime=$(awk '{print $1}' /proc/uptime)
        pid_uptime=$((${sys_uptime%.*} - ${start_time}/${time_subroutine}))
        if [ ${pid_uptime} -ge 600 ];then
                kill -9 $1
        fi
        }
#for pid in $(ps -A -o pid,start_time,etime,comm | grep "API_NetDemo")
for pid in `ps -A | grep "API_NetDemo"|awk '{print $1}'`
do
        check_time $pid
done

参考文档：

http://smilejay.com/2012/05/get_process_time/

http://blog.csdn.net/zjl_1026_2001/article/details/2294067

http://man7.org/linux/man-pages/man5/proc.5.html