The ps command supports many options to select fields in order to display and control how they are displayed. Here are some of the more common options:
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-f |
This specifies a full format. It includes the starting time of the parent PID user ID. |
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-u userList |
This selects processes owned by the users in the list. By default, it selects the current user. |
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-l |
Long listing. It displays the user ID, parent PID, size, and more. |