fvwm 2.6.7 compiled on Jan 16 2017 at 17:52:00 with support for: ReadLine, RPlay, Stroke, XPM, SVG, Shape, XShm, SM, Bidi text, Xinerama, XRender, XCursor, XFT, NLS fvwm comes with NO WARRANTY, to the extent permitted by law. You may redistribute copies of fvwm under the terms of the GNU General Public License. For more information about these matters, see the file named COPYING.

usage: fvwm [-d display] [-f cfgfile] [-c cmd] [-s [screen_num]] [-I vis-id | -C vis-class] [-l colors [-L|A|S|P] ...] [-r] [OTHER OPTIONS] ... -A: allocate palette -c cmd: preprocess configuration file with <cmd> -C vis-class: use visual class <vis-class> -d display: run fvwm on <display> -D: enable debug oputput -f cfgfile: read configuration from <cfgfile> -F file: used internally for session management -h, -?: print this help message -i client-id: used internally for session management -I vis-id: use visual <vis-id> -l colors: try to use no more than <colors> colors -L: strict color limit -P: visual palette -r: replace running window manager -s [screen]: manage a single screen -S: static palette -V: print version information Try 'man fvwm' for more information.