htop --version (return code: 0)
htop 2.0.2 - (C) 2004-2016 Hisham Muhammad
Released under the GNU GPL.
htop --help (return code: 0)
htop 2.0.2 - (C) 2004-2016 Hisham Muhammad
Released under the GNU GPL.
-C --no-color Use a monochrome color scheme
-d --delay=DELAY Set the delay between updates, in tenths of seconds
-h --help Print this help screen
-s --sort-key=COLUMN Sort by COLUMN (try --sort-key=help for a list)
-u --user=USERNAME Show only processes of a given user
-p --pid=PID,[,PID,PID...] Show only the given PIDs
-v --version Print version info
Long options may be passed with a single dash.
Press F1 inside htop for online help.
See 'man htop' for more information.