The default behaviour has been changed as this seems to be more useful. Update the display this number of times and then exit. Useful for sending output from top to other programs or to a file. In this mode, top will not accept command line input. It runs until it produces the number of iterations requested with the n option or until killed.
Output is plain text suitable for display on a dumb terminal.
The display is updated every 5 seconds by default, but you can change that with the d command-line option or the s interactive command. The uptime display may be toggled by the interactive l command. This is also broken down into the number of tasks which are running, sleeping, stopped, or undead. The processes and states display may be toggled by the t interactive command. The processes and states display may be toggled by the t interactive command.