通过ps命令查看进程启动时间以及运行时间

[oracle@oracle11g ~]$ ps -eo pid,lstart,etime,cmd | grep tns
   10 Fri Oct 14 18:06:28 2022       02:38 [netns]
 2177 Fri Oct 14 18:07:30 2022       01:36 /u01/app/oracle/product/11.2.0/db_1/bin/tnslsnr LISTENER -inherit
 2975 Fri Oct 14 18:09:05 2022       00:01 grep tns
[oracle@oracle11g ~]$ ps -eo pid,lstart,etime,cmd | grep tns
   10 Fri Oct 14 18:06:28 2022       02:39 [netns]
 2177 Fri Oct 14 18:07:30 2022       01:37 /u01/app/oracle/product/11.2.0/db_1/bin/tnslsnr LISTENER -inherit
 2977 Fri Oct 14 18:09:06 2022       00:01 grep tns