命令：
ps -eo pid,lstart,cmd
lstart- 进程启动的精确时间
参考：https://stackoverflow.com/questions/5731234/how-to-get-the-start-time-of-a-long-running-linux-process
命令：
ps -eo pid,lstart,cmd
lstart - 进程启动的精确时间参考：https://stackoverflow.com/questions/5731234/how-to-get-the-start-time-of-a-long-running-linux-process