How to view the list of running processes in Linux?

There are several main methods:

• Using the ps command: Allows viewing current processes.

  // Show all processes for all users in BSD format
  ps aux
  
  // Show processes in a tree format
  ps axjf
  
  // Show only processes of the current user in a readable format
  ps -ef
  

  Common fields:

  Field	Description
  UID	User identifier
  PID	Process identifier
  PPID	Parent process identifier
  TTY	Terminal associated with the process
  CMD	Command that started the process

• Using the top command: An interactive tool that displays processes in real-time, sorted by CPU usage (default).

  // Run top
  top
  
  // Run top with updates every 2 seconds
  top -d 2
  

• Using the htop command: An improved version of top with a more user-friendly interface and additional features (requires installation).

  // Run htop
  htop
  

The choice of command depends on the required information and user preferences. For quick static viewing, ps is often used; for interactive real-time monitoring, top or htop are preferred.