What commands, besides 'top', can be used to get process information in Linux?

In addition to the top command, Linux offers the following commands to obtain information about processes:

• ps — displays a list of current processes. For example, ps aux shows all processes with detailed information.
• htop — an interactive process viewer with a user-friendly interface (similar to top, but more visual).
• pidof — allows you to find the PID of a process by name.
• pgrep — searches for processes by name or other criteria.
• pstree — displays processes in a tree structure, showing hierarchy.
• vmstat — shows statistics on processes and system resources.

Example of using ps:

ps aux | grep nginx

This will display all processes related to nginx.