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How to use top Linux command

The top command provides a dynamic real-time view of a running system. It can display system summary information as well as a list of tasks currently being managed by the Linux kernel. The types of system summary information shown and the types, order, and size of information displayed for tasks are all user-configurable and that configuration can be made persistent across restarts.

Usage

Show real-time processes that the user owns

    
      $ top -u username
    
  

Show real-time processes with command arguments

    
      $ top -c