Linux query running processes

1. show all processes ps a

   Show all programs under the same terminal ps -a

   
2. Display the relevant processes of the effective user ps -u

   
3. List more complete information ps -x

   
4. Query all process data of the system ps aux

   
5. View processes not related to terminal ps ax

   
6. View the same part of the process tree status ps axjf

   
7. ps can be queried in combination with grep

   For example: ps -ef | grep java means to view the process information of all processes whose CMD is java, etc.