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Ps efgrep command10/3/2023 UID PID PPID C SZ RSS PSR STIME TTY TIME CMD However there is a -F option, which is the extra full format. The -f option gives the full format listing. Root 2120 1 0 Dec11 ? 00:00:00 nginx: master process /eph/sbin/nginx -g daemon on master_process on Quite often, the ps command is used in conjunction with the grep command, to filter out processes matching a certain pattern. Finally, we have the command, using which, the process was created. The next column gives the cumulative CPU time used by the process in hh:mm:ss format. The next two columns give the process start time and the terminal from which the process has been started respectively. A high value for C indicates a CPU intensive process. It is the CPU time used by the process divided by the clock time the process has been running, expressed as the integer value of the percentage. The next column, with heading C, represents CPU utilization. The third column gives the parent process id. The second column gives the process-id, the unique id of the process in the system. In the ps output, the first column gives the process owner's user-id. Without it, ps -e command would have just listed all the processes but with lesser number of attributes. Without this, ps gives the processes belonging to the same effective user id as the user giving the command and also started from the current terminal. The -e option selects all processes in the system. Root 1008 990 2 Feb20 tty7 02:44:38 /usr/bin/X :0 -auth /var/run/lightdm/root/:0 -nolisten tcp vt7 -novtswitch -background none To find out information about all the processes in the system, the command is, So, to know what is happening in the system, the first instinctive action is to find out about processes running in the system by using the ps command. Also, for each installed package, there might be one or more processes. Our programs run as processes in the system. but even to get shutdown databases list, we should use oratab file which either exists in /etc or /var directory.The ps command gives information about processes on a Linux or Unix system. We can get all up and running DB’s information by using ps -ef | grep smon command. if database is up and running, it will show as “started”. how to check how many databases existing on the server? (count the databases even if they are down)Ĭheck services.msc which will show all the databases services list. So, if you see SMON is shown in ps command, then it means your instance is started for sure.Ģ. we can say that only if we see some output as follows when using ps -ef | grep ora command Note: By looking at the above output we cannot say that database is available. Use “ps -ef | grep smon” command and output logs]$ ps -ef | grep smon The above i tried on windows XP, so results may differ in other versions of windows… With the Partitioning, OLAP and Data Mining optionsīut still my services.msc showing as “started” Oracle Database 10g Enterprise Edition Release 10.2.0.1.0 – Production Note: If you shutdown the database at SQL prompt, still service will show as “started”. command to check if the database is running at OS level or notĬheck whether service is started in services.msc and you could see something like this
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