-a | Same as -bdlprTtu |
-b | Time of last system boot |
-d | Print dead processes |
-H | Write column headings above the regular output |
-l | Print system login processes (unsupported) |
-m | Only print information about the current terminal |
-p | Print active processes spawned by launchd(8) (unsupported) |
-q | 'Quick mode': List only names and number of users currently logged on |
-r | Print the current runlevel |
-s | List only the name, line and time fields (this is the default) |
-T | Print a character after the user name indicating the state of the terminal line: '+' writable, '-' not writable, '?' bad |
-t | Print last system clock change (unsupported) |
-u | Print the idle time for each user and the associated process ID |