1XLOCK(1) General Commands Manual XLOCK(1)
2
6 xlock - Locks the local X display until a password is entered.
7
10 xlock [ -help ] [ -version ] [ -resources ] [ -display displayname ] [
11 -visual visualname ] [ -name resourcename ] [ -mode modename ] [ -delay
12 usecs ] [ -batchcount num ] [ -count num ] [ -cycles num ] [ -ncolors
13 num ] [ -size num ] [ -saturation value ] [ -erasemode modename ] [
14 -erasedelay usecs ] [ -/+allowaccess ] [ -vtlock modename ] [ -/+nolock
15 ] [ -/+inwindow ] [ -/+inroot ] [ -/+remote ] [ -/+mono ] [ -/+allow‐
16 root ] [ -/+debug ] [ -/+description ] [ -/+echokeys ] [ -echokey
17 echokey ] [ -/+enablesaver ] [ -/+resetsaver ] [ -/+grabmouse ] [
18 -/+grabserver ] [ -/+install ] [ -/+mousemotion ] [ -/+sound ] [
19 -/+showdate ] [ -/+timeelapsed ] [ -/+usefirst ] [ -/+verbose ] [ -nice
20 level ] [ -lockdelay seconds ] [ -timeout seconds ] [ -font fontname ]
21 [ -planfont fontname ] [ -bg color ] [ -fg color ] [ -background color
22 ] [ -foreground color ] [ -username string ] [ -password string ] [
23 -info string ] [ -validate string ] [ -invalid string ] [ -geometry
24 geom ] [ -icongeometry geom ] [ -glgeometry geom ] [ -/+wireframe ] [
25 -/+showfps ] [ -fpsfont fontname ] [ -/+fpstop ] [ -/+use3d ] [
26 -delta3d value ] [ -none3d color ] [ -right3d color ] [ -left3d color ]
27 [ -both3d color ] [ -program programname ] [ -messagesfile formatted-
28 filename ] [ -messagefile filename ] [ -message string ] [ -messagefont
29 fontname ] [ -bitmap filename ] [ -cpasswd crypted-password ] [
30 -forceLogout minutes ] [ -logoutButton minutes ] [ -logoutButtonLabel
31 textstring ] [ -logoutButtonHelp textstring ] [ -logoutFailedString
32 textstring ] [ -/+dtsaver ] [ -/+xinerama ] [ -modulepath path ] [
33 -locksound string ] [ -infosound string ] [ -validsound string ] [ -in‐
34 validsound string ] [ -startCmd string ] [ -endCmd string ] [
35 -pipepassCmd string ] [ -logoutCmd string ]
36
39 xlock locks the X server till the user enters their password at the
40 keyboard. While xlock is running, all new server connections are re‐
41 fused. The screen saver is disabled. The mouse cursor is turned off.
42 The screen is blanked and a changing pattern is put on the screen. If
43 a key or a mouse button is pressed then the user is prompted for the
44 password of the user who started xlock.
45 If the correct password is typed, then the screen is unlocked and the X
47 server is restored. When typing the password Control-U and Control-H
48 are active as kill and erase respectively. To return to the locked
49 screen, click in the small icon version of the changing pattern.
50 In the lower part of the password screen a text is displayed. This
52 message is taken from the first file of the following that exists:
53 $HOME/.xlocktext, $HOME/.plan, or $HOME/.signature.
54 On systems which support new BSD style authentication, the password may
56 be prefixed by an authentication style followed by a colon (i.e.
57 "style:password"). See the login.conf(5) for more information on au‐
58 thentication styles.
59
62 Xlock should not be used on public terminals when there is a high de‐
63 mand for them.
64 If you find a public terminal that has been locked by another user and
66 there are no other terminals available, and the terminal appears to
67 have been left idle for a while (normally more than 15 minutes), it is
68 fair to try to reset the session in some manner.
69
72 -help
73 Print options and a brief description to standard output.
74 -version
76 Print version number (if >= 4.00) to standard output.
77 -resources
79 Print default resource file to standard output.
80 -display displayname
82 The display option sets the X11 display to lock. xlock locks all
83 available screens on a given server, and restricts you to locking
84 only a local server such as unix:0, localhost:0, or :0 unless you
85 set the -remote option.
86 -visual visualname
88 visualname which is one of "StaticGray", "GrayScale", "Static‐
89 Color", "PseudoColor", "TrueColor", "DirectColor", or "default".
90 default used to set the screen's default visual (the visual of the
91 root window).
92 -name resourcename
94 resourcename is used instead of XLock when looking for resources
95 to configure xlock.
96 -mode modename
98 As of this writing there are over 90 display modes supported (plus
99 one more for random selection of one of these).
100 anemone Shows wiggling tentacles.
102 ant Shows Langton's and Turk's generalized ants.
104 ant3d Shows 3D ants.
106 apollonian
108 Shows Apollonian circles.
109 atlantis
111 Shows moving sharks/whales/dolphin. May not be available de‐
112 pending on how it was configured.
113 atunnels
115 Advance GL tunnels screensaver. May not be available depending
116 on how it was configured.
117 ball Shows bouncing balls.
119 bat Shows bouncing flying bats.
121 blot Shows Rorschach's ink blot test.
123 bouboule
125 Shows Mimi's bouboule of moving stars.
126 bounce Shows bouncing footballs.
128 braid Shows random braids and knots.
130 bubble Shows popping bubbles.
132 bubble3d
134 Shows Richard Jones's GL bubbles. May not be available depend‐
135 ing on how it was configured.
136 bug Shows Palmiter's bug evolution and a garden of Eden.
138 clock Shows Packard's oclock.
140 coral Shows a coral reef.
142 crystal Shows polygons in 2D plane groups.
144 daisy Shows a meadow of daisies.
146 dclock Shows a floating digital clock or message.
148 deco Shows art as ugly as sin.
150 demon Shows Griffeath's cellular automata.
152 dilemma Shows Lloyd's Prisoner's Dilemma simulation.
154 discrete
156 Shows various discrete maps.
157 dragon Shows Deventer's Hexagonal Dragons Maze.
159 drift Shows cosmic drifting flame fractals.
161 cage Shows the Impossible Cage, an Escher-like GL scene. May not be
163 available depending on how it was configured.
164 euler2d Shows a simulation of 2D incompressible inviscid fluid.
166 eyes Shows eyes following a bouncing grelb.
168 fadeplot
170 Shows a fading plot of sine squared.
171 fiberlamp
173 Shows a Fiber Optic Lamp.
174 fire Shows a 3D fire-like image. May not be available depending on
176 how it was configured.
177 flag Shows a waving flag image. This may be text or a graphic im‐
179 age. Default text is the hostname and operating system.
180 flame Shows cosmic flame fractals.
182 flow Shows dynamic strange attractors.
184 forest Shows binary trees of a fractal forest.
186 fzort Shows a metallic-looking fzort.
188 galaxy Shows crashing spiral galaxies.
190 gears Shows GL's gears. May not be available depending on how it was
192 configured.
193 glplanet
195 Animates texture mapped sphere (planet)
196 goop Shows goop from a lava lamp.
198 grav Shows orbiting planets.
200 helix Shows string art.
202 hop Shows real plane iterated fractals.
204 hyper Shows spinning n-dimensional hypercubes.
206 ico Shows a bouncing polyhedron.
208 ifs Shows a modified iterated function system.
210 image Shows randomly appearing logos.
212 juggle Shows a Juggler, juggling.
214 juggle Shows a 3D Juggler, juggling.
216 julia Shows the Julia set.
218 kaleid Shows Brewster's Kaleidoscope.
220 kumppa Shows kumppa.
222 laser Shows spinning lasers.
224 life Shows Conway's game of life.
226 life1d Shows Wolfram's game of 1D life.
228 life3d Shows Bays' game of 3D life.
230 lightning
232 Shows Keith's fractal lightning bolts.
233 lisa Shows animated lissajous loops.
235 lissie Shows lissajous worms.
237 loop Shows Langton's self-producing loops.
239 mandelbrot
241 Shows mandelbrot sets.
242 marquee Shows text.
244 matrix Shows the matrix.
246 maze Shows a random maze and a depth first search solution.
248 moebius Shows the Moebius Strip II, an Escher-like GL scene with ants.
250 May not be available depending on how it was configured.
251 molecule
253 Draws molecules, based on coordinates from PDB (Protein Data
254 Base) files.
255 morph3d Shows GL morphing polyhedra. May not be available depending on
257 how it was configured.
258 mountain
260 Shows Papo's mountain range.
261 munch Shows munching squares.
263 noof Shows SGI Diatoms.
265 nose Shows a man with a big nose runs around spewing out text.
267 pacman Shows Pacman(tm).
269 penrose Shows Penrose's quasiperiodic tilings.
271 petal Shows various GCD Flowers.
273 petri Shows a mold simultation in a petri dish
275 pipes Shows a self-building pipe system. May not be available de‐
277 pending on how it was configured.
278 polyominoes
280 Shows attempts to place polyominoes into a rectangle.
281 puzzle Shows a puzzle being scrambled and then solved.
283 pyro Shows fireworks.
285 pyro2 Shows other fireworks.
287 qix Shows spinning lines a la Qix(tm).
289 roll Shows a rolling ball.
291 rain Shows rain.
293 rotor Shows Tom's Roto-Rooter.
295 rubik Shows an auto-solving Rubik's Cube. May not be available de‐
297 pending on how it was configured.
298 sballs Shows balls spinning like crazy in GL. May not be available
300 depending on how it was configured.
301 scooter Shows a journey through space tunnel and stars.
303 shape Shows stippled rectangles, ellipses, and triangles.
305 sierpinski
307 Shows a Sierpinski's triangle.
308 sierpinski3d
310 Shows a Sierpinski's gasket.
311 skewb Shows an auto-solving Skewb. May not be available depending on
313 how it was configured.
314 slip Shows slipping blits.
316 solitaire
318 Shows Klondike's game of solitaire.
319 space Shows a journey into deep space.
321 sphere Shows a bunch of shaded spheres.
323 spiral Shows a helical locus of points.
325 spline Shows colorful moving splines.
327 sproingies
329 Shows Sproingies! Nontoxic. Safe for pets and small children.
330 May not be available depending on how it was configured.
331 stairs Shows Infinite Stairs, an Escher-like GL scene. May not be
333 available depending on how it was configured.
334 star Shows a star field with a twist.
336 starfish
338 Shows starfish.
339 strange Shows strange attractors.
341 superquadrics
343 Shows 3D mathematical shapes. May not be available depending
344 on how it was configured.
345 swarm Shows a swarm of bees following a wasp.
347 swirl Shows animated swirling patterns.
349 t3d Shows a Flying Balls Clock Demo.
351 tetris Shows an autoplaying tetris game.
353 text3d | text3d2
355 Shows 3D moving texts.
356 thornbird
358 Shows an animated Bird in a Thorn Bush fractal map.
359 tik_tak Shows rotating polygons.
361 toneclock
363 Shows Peter Schat's toneclock.
364 triangle
366 Shows a triangular mountain range.
367 tube Shows an animated tube.
369 turtle Shows turtle fractals.
371 vines Shows fractal-like vines.
373 voters Shows Dewdney's Voters.
375 wator Shows Dewdney's Water-Torus planet of fish and sharks.
377 wire Shows a random circuit with 2 electrons.
379 world Shows spinning Earths.
381 worm Shows wiggly worms.
383 xjack Shows Jack having one of those days.
385 xcl Shows a Control Line combat model race
387 blank Shows nothing but a black screen. Does not show up in random
389 mode.
390 bomb Shows a bomb and will autologout after a time. Does not show
392 up in random mode and may be available depending on how it was
393 configured.
394 random Shows a random mode from above except blank (and bomb).
396 -delay usecs
399 The delay option sets the speed at which a mode will operate. It
400 simply sets the number of microseconds to delay between batches of
401 animations. In blank mode, it is important to set this to some
402 small number of seconds, because the keyboard and mouse are only
403 checked after each delay, so you cannot set the delay too high,
404 but a delay of zero would needlessly consume cpu checking for
405 mouse and keyboard input in a tight loop, since blank mode has no
406 work to do.
407 -count num
409 The batchcount option sets number of things to do per batch to num
410 .
411 In anenome mode it is means nothing.
413 In ant and ant3d modes this refers the number of ants.
415 In apollonian mode it is the number of possible ways to embed cir‐
417 cles within a circle, all of integer curvature.
418 In atlantis mode it is the number of sharks.
420 In atunnels mode it is means nothing.
422 In ball mode it is the number of balls.
424 In bat mode it is the number of bats, could be less because of
426 conflicts.
427 In blot mode this refers to the number of pixels rendered in the
429 same color.
430 In bouboule mode it is the number of stars.
432 In bounce mode it is the number of balls, could be less because of
434 conflicts.
435 In braid mode it is the upper bound number of strands.
437 In bubble mode it is the number of bubbles.
439 In bubble3d mode it is the number of bubbles.
441 In bug mode it is the number of bugs, could be less because of
443 conflicts.
444 In cage mode it is means nothing.
446 In clock mode it is the percentage of the screen, but less than
448 100%.
449 In coral mode it is the number of seeds.
451 In crystal mode it is the number of polygons.
453 In daisy mode it is the number flowers that make a meadow.
455 In dclock mode it means nothing.
457 In deco mode it is the depth.
459 In demon mode this refers the number of colors.
461 In dilemma mode this refers the number of initial defectors.
463 In discrete mode it is the number of points.
465 In drift mode it is the number of levels to recurse (larger = more
467 complex).
468 In dragon mode it means nothing.
470 In euler2d mode it is the number of segments.
472 In eyes mode it is the number of eyes.
474 In fadeplot mode it is the number of steps.
476 In fiberlamp it is the number of fibers.
478 In fire mode it is the number of fire particles (set it to 0 to
480 have rain).
481 In flag mode it means nothing.
483 In flame mode it is the number of levels to recurse (larger = more
485 complex).
486 In flow mode it is the number of bees.
488 In forest mode it is the number trees that make a forest.
490 In fzort mode it means nothing.
492 In galaxy mode it means the number of galaxies.
494 In gears mode it is the number of degrees to rotate the set of
496 gears by.
497 In glplanet mode it is the number of hundredth degrees to roll the
499 planet by.
500 In goop mode it is the number of blobs per plane.
502 In grav mode it is the number of planets.
504 In helix mode it means nothing.
506 In hop mode this refers to the number of pixels rendered in the
508 same color.
509 In hyper mode it the number of dimensions.
511 In ico mode it is the ith platonic solid.
513 In ifs mode it means nothing.
515 In image mode it means it is the number of logos on screen at
517 once.
518 In juggle mode it is time in milliseconds between a throw and the
520 next catch.
521 In juggler3d mode it is time in milliseconds between a throw and
523 the next catch.
524 In julia mode it is the depth of recursion.
526 In kaleid mode it is the number of pens.
528 In kumppa mode it means nothing.
530 In lament mode it means nothing.
532 In laser mode it is the number lasers.
534 In life and life3d modes it is the number of generations before a
536 glider is introduced.
537 In life1d mode it means nothing.
539 In lisa mode it is the number of loops.
541 In lissie mode it is the number of worms.
543 In loop mode it is the number of flaws.
545 In mandelbrot mode it is the order.
547 In marquee mode it means nothing.
549 In matrix mode it means nothing.
551 In maze mode it means nothing.
553 In moebius mode it is means nothing.
555 In molecule mode it means nothing.
557 In morph3d mode it is the ith platonic solid.
559 In mountain mode it is the number of mountains.
561 In munch mode it means nothing.
563 In noof mode it means nothing.
565 In nose mode it means nothing.
567 In qix mode it is the number of points.
569 In pacman mode it means the number of ghosts.
571 In penrose mode it means nothing.
573 In petal mode it the greatest random number of petals.
575 In petri mode it means nothing.
577 In pipes mode it shows different joints, 0 random, 1 spherical, 2
579 bolted elbow, 3 elbow, and 4 alternating.
580 In polyominoes mode it means nothing.
582 In puzzle mode it the number of moves.
584 In pyro mode it is the maximum number flying rockets at one time.
586 In pyro2 mode it is means nothing.
588 In rain mode it is means nothing.
590 In roll mode it is the number of points.
592 In rotor mode it is the number of rotor thingys which whirr...
594 In rubik mode it is the number of moves.
596 In sballs mode it is the number of spheres.
598 In scooter mode it is the number of doors.
600 In shape mode it means nothing.
602 In sierpinski mode it is the number of points.
604 In skewb mode it is the number of moves.
606 In slip mode it means nothing.
608 In solitaire mode it means nothing.
610 In space mode it is the number of stars.
612 In sphere mode it means nothing.
614 In spiral mode it is the number of spirals.
616 In spline mode it is the number of points "splined".
618 In sproingies mode it is the number of sproingies.
620 In stairs mode it is means nothing.
622 In star mode it is the number of stars on the screen at once.
624 In starfish mode it means nothing.
626 In strange mode it means nothing.
628 In superquadrics mode its the number of horizontal and vertical
630 lines in the superquadric.
631 In swirl mode it means the number of "knots".
633 In swarm mode it is the number of bees.
635 In t3d mode it means nothing.
637 In tetris mode it means nothing.
639 In text3d mode it means nothing.
641 In thornbird mode it is the number of points.
643 In triangular mode it is the number of mountains.
645 In tube mode it is a rectangle (= 1), an ellipse (= 2), or a poly‐
647 gon if greater.
648 In turtle mode it means nothing.
650 In vines mode it is draw a complete vine (= 0) or a portion (= 1).
652 In voters mode it means the number of parties, 2 or 3.
654 In wator mode it means the breed time for the fish.
656 In wire mode it means the length of the circuit.
658 In world mode it is the number of worlds.
660 In worm mode it is the number of worms.
662 In xcl mode it represents the number of planes.
664 In xjack mode it means nothing.
666 In blank mode it means nothing.
668 In bomb mode it means the number of minutes to autologout.
670 A negative count allows for randomness. The range from the mini‐
672 mum allowed nonnegative count for a particular mode to the ABS(
673 count ) (or maximum allowed count , whichever is less).
674 -batchcount num
676 The batchcount option is deprecated but should still work as
677 count.
678 -cycles num
680 The cycles option sets the number of cycles until time out for
681 ant, ant3d, apollonian, blot, braid, bug, clock, crystal, daisy,
682 deco, demon, dilemma, discrete, dragon, eyes, fiberlamp, flag,
683 flow, forest, galaxy, helix, hop, hyper, ico, juggle, juggler3d,
684 laser, life, life1d, life3d, lisa, lissie, loop, mandelbrot, moun‐
685 tain, petal, sierpinski, shape, spline +erase, t3d, thornbird,
686 triangle, tube, voters, wator, and wire. For euler2d and worm it
687 is the length of the lines, for atlantis it is the shark speed,
688 for fadeplot, julia and spiral it is the length of the trail of
689 dots, munch it is the minimum size of the squares, for kaleid it
690 is the % of black, for qix it is the number of lines, for spline
691 -erase it means the number of splines * 64 (for compatibility with
692 +erase), for gears it is the number of degrees to increment the
693 spin of each gear by, for glplanet it is the number of hundredth
694 degrees to rotate the planet by, for molecule it is the time in
695 seconds until timeout, for pipes it is the number of systems to
696 draw before clearing the screen, for rubik it is the number of
697 steps to complete a 90 degree move, for sballs it is the sphere
698 speed value, for scooter it is the speed, for skewb it is the num‐
699 ber of steps to complete a 120 degree move, for superquadrics it
700 is the number of frames it takes to morph from one shape to an‐
701 other. for text3d it is the number of times drawing a word before
702 the next one, For others it means nothing.
703 -size num
705 The size option sets the size maximum size of a star in bouboule,
706 pyro and star, size of ball in ball and bounce, size of bat in
707 bat, maximum size of bubble in bubble, size of clock in clock,
708 minimum size of rectangles in deco, size of the polygons in crys‐
709 tal, tik_tak, and toneclock, size of polyhedron in ico, size of
710 lissie in lissie, size of dots of flag, for kaleid it is the sym‐
711 metry, width of maze hallway, size of side of penrose tile, radius
712 of loop in lisa, radius of ball in roll, number of corners in
713 sierpinski, number of stars in scooter, size of tube in tube,
714 width of worm in worm, line width in rotor, size of cells in ant,
715 bug, dilemma, dragon, life, life1d, pacman, petri, tetris, voters,
716 wator, and wire. In pipes it is the maximum length of a system.
717 In flow and swarm it is the length of the lines. In atlantis it
718 is the shark size. A negative number allows for randomness, simi‐
719 lar to count. In atunnels, fire, gears, sballs and sproingies it
720 is the size of the screen (default 400), this is because on many
721 slow systems it runs too slow when the picture covers the full
722 screen. Set to 0 for full screen on fast machines.
723 -ncolors num
725 The ncolors option sets the maximum number of colors to be used.
726 -saturation value
728 The saturation option sets saturation of the color ramp used to
729 value . 0 is grayscale and 1 is very rich color. 0.4 is a nice
730 pastel.
731 -erasemode modename
733 As of this writing there are over 12 erase modes supported (if its
734 not chosen its assumed random). The erase modes are random_lines,
735 random_squares, venetian, triple_wipe, quad_wipe, circle_wipe,
736 three_circle_wipe, squaretate, fizzle, spiral, slide_lines,
737 losira, no_fade. modename is now similar to the option modelist
738 where you can it can be something like "all-losira" to get all
739 erasemodes but losira. Use a "+" or a "," to add modes like "spi‐
740 ral+venetian".
741 -erasedelay usecs
743 The erasedelay option sets the number of microseconds for steps of
744 the erasemode (a setting of 0 and the erasemode is bypassed).
745 +/-nolock
747 The nolock option causes xlock to only draw the patterns and not
748 lock the display. A key press or a mouse click will terminate the
749 screen saver.
750 -/+inwindow
752 Runs xlock in a window, so that you can iconify, move, or resize
753 it and still use your screen for other stuff. When running in a
754 window, xlock no longer locks your screen, it just looks good.
755 -/+inroot
757 Runs xlock in your root window. Like the inwindow option it no
758 longer locks the screen, it just looks good.
759 -/+remote
761 The remote option tells xlock to not stop you from locking remote
762 X11 servers. This option should be used with care and is intended
763 mainly to lock X11 terminals which cannot run xlock locally. If
764 you lock someone else's workstation, they will have to know your
765 password to unlock it. Using +remote overrides any resource de‐
766 rived values for remote and prevents xlock from being used to lock
767 other X11 servers. (Use `+' instead of `-' to override resources
768 for other options that can take the `+' modifier similarly.)
769 -/+mono
771 The mono option causes xlock to display monochrome, (black and
772 white) pixels rather than the default colored ones on color dis‐
773 plays.
774 -/+allowaccess
776 This option is required for servers which do not allow clients to
777 modify the host access control list. It is also useful if you
778 need to run x clients on a server which is locked for some rea‐
779 son... When allowaccess is true, the X11 server is left open for
780 clients to attach and thus lowers the inherent security of this
781 lock screen. A side effect of using this option is that if xlock
782 is killed -KILL, the access control list is not lost.
783 -vtlock modename
785 This option is used on a XFree86 system to manage VT switching in
786 [off|noswitch|switch|restore] mode.
787 off means no VT switch locking.
789 switch means VT switch locking + switching to xlock VT when acti‐
791 vated.
792 restore means VT switch locking + switching to xlock VT when acti‐
794 vated + switching back to previous VT when deactivated.
795 noswitch means VT switch locking only when xlock VT is active.
797 -/+allowroot
799 The allowroot option allows the root password to unlock the server
800 as well as the user who started xlock. May not be able to turn
801 this on and off depending on your system and how xlock was config‐
802 ured.
803 -/+debug
805 Allows xlock to be debugged by doing all but locking the screen.
806 -/+description
808 The description option causes xlock shows a mode description above
809 password window. The default is to show this description.
810 -/+echokeys
812 The echokeys option causes xlock to echo '?' characters (default)
813 for each key typed into the password prompt. Some consider this a
814 security risk, so the default is to not echo anything.
815 -echokey echokey
817 The text character to use for echo key in echokeys .
818 -/+enablesaver
820 By default xlock will disable the normal X server's screen saver
821 since it is in effect a replacement for it. Since it is possible
822 to set delay parameters long enough to cause phosphor burn on some
823 displays, this option will turn back on the default screen saver
824 which is very careful to keep most of the screen black.
825 -/+resetsaver
827 By default xlock will call XResetScreenSaver. This may be unde‐
828 sirable with DPMS monitors.
829 -/+grabmouse
831 The grabmouse option causes xlock to grab the mouse and keyboard,
832 this is the default. xlock can not lock the screen without this.
833 -/+grabserver
835 The grabserver option causes xlock to grab the server. This is
836 not usually needed but some unsecure X servers can be defeated
837 without this.
838 -/+install
840 Allows xlock to install its own colormap if xlock runs out of col‐
841 ors. May not work on with some window managers (fvwm) and does
842 not work with the -inroot option.
843 -/+mousemotion
845 Allows you to turn on and off the sensitivity to the mouse to
846 bring up the password window.
847 -/+sound
849 Allows you to turn on and off sound if installed with the capabil‐
850 ity.
851 -/+showdate
853 Allows you to turn on and off the date on password window. On by
854 default.
855 -/+timeelapsed
857 Allows you to find out how long a machine is locked so you can
858 complain to an administrator that someone is hogging a machine.
859 -/+usefirst
861 The usefirst option causes xlock to use the keystroke which got
862 you to the password screen as the first character in the password.
863 The default is to ignore the first key pressed.
864 -/+verbose
866 Verbose mode, tells what options it is going to use.
867 -nice nicelevel
869 The nice option sets system nicelevel of the xlock process to
870 nicelevel .
871 -lockdelay seconds
873 The lockdelay option sets the number of seconds before the screen
874 needs a password to be unlocked. Good for use with an autolocking
875 mechanism like xautolock(1).
876 -timeout seconds
878 The timeout option sets the number of seconds before the password
879 screen will time out.
880 -font fontname
882 The font option sets the font to be used on the prompt screen.
883 -planfont fontname
885 option sets the font to be used for the text that is displayed in
886 the lower part of the password screen.
887 -fg color
889 The fg option sets the color of the text on the password screen to
890 color .
891 -bg color
893 The bg option sets the color of the background on the password
894 screen to color .
895 -foreground color
897 The foreground option sets the color of the text on the password
898 screen to color .
899 -background color
901 The background option sets the color of the background on the
902 password screen to color .
903 -username string
905 Text string is shown in front of user name, defaults to "Name: ".
906 -password string
908 Text string is the password prompt string, defaults to "Password:
909 ".
910 -info string
912 Text string is an informational message to tell the user what to
913 do, defaults to "Enter password to unlock; select icon to lock.".
914 -validate string
916 Text string is a message shown while validating the password, de‐
917 faults to "Validating login..."
918 -invalid string
920 Text string is a message shown when password is invalid, defaults
921 to "Invalid login."
922 -geometry geom
924 The geometry option sets geom the size and offset of the lock win‐
925 dow (normally the entire screen). The entire screen format is
926 still used for entering the password. The purpose is to see the
927 screen even though it is locked. This should be used with caution
928 since many of the modes will fail if the windows are far from
929 square or are too small (size must be greater than 0x0). This
930 should also be used with -enablesaver to protect screen from phos‐
931 phor burn.
932 -icongeometry geom
934 The icongeometry option sets geom the size of the iconic screen
935 (normally 64x64) seen when entering the password. This should be
936 used with caution since many of the modes will fail if the windows
937 are far from square or are too small (size must be greater than
938 0x0). The greatest size is 256x256. There should be some limit
939 so users could see who has locked the screen. Position informa‐
940 tion of icon is ignored.
941 -glgeometry geom
943 The glgeometry option sets geom the size of the screen for gl
944 modes. Not normally available or needed.
945 -/+wireframe
947 Turn on/off wireframe, available on ant3d, atlantis, atunnels,
948 daisy, fire, gears, lament, life3d, mountain, sballs, sproingies,
949 superquadrics, and triangle.
950 -/+showfps
952 Turn on/off frame per sec display, available on atlantis, atun‐
953 nels, bubble3d, cage, fire, gears, invert, lament, moebius,
954 morph3d, rubik, sballs, skewb, stairs, and superquadrics.
955 -/+fpstop
957 Turn on/off frame per sec display on top of screen, used if
958 showfps is on.
959 -fpsfont fontname
961 The fpsfont option sets the font to be used in the frame per sec
962 display, used if showfps is on.
963 -/+use3d
965 Turn on/off 3d view, available on bouboule, pyro, star, and worm.
966 -delta3d value
968 Space between the center of your 2 eyes for 3d mode.
969 -none3d color
971 Color used for empty size in 3d mode.
972 -right3d color
974 Color used for right eye in 3d mode.
975 -left3d color
977 Color used for left eye in 3d mode.
978 -both3d color
980 Color used for overlapping images for left and right eye in 3d
981 mode.
982 -program programname
984 The program option sets the program to be used as the fortune gen‐
985 erator. Currently used only for marquee and nose modes.
986 -messagesfile formatted-filename
988 The messagesfile option sets the file to be used as the fortune
989 generator. The first entry is the number of fortunes, the next
990 line contains the first fortune. Fortunes begin with a "%%" on a
991 line by itself. Currently used only for marquee and nose modes.
992 If one exists, it takes precedence over the fortune program.
993 -messagefile filename
995 The messagefile option sets the file whose contents are displayed.
996 Currently used only for marquee and nose modes. If one exists, it
997 takes precedence over the fortune program and messagesfile.
998 -message textstring
1000 The message option sets the text to be displayed in a mode. Cur‐
1001 rently used only for flag, marquee and nose modes. If one exists,
1002 it takes precedence over the fortune program, messagesfile and
1003 message.
1004 -messagefont fontname
1006 The messagefont option sets the font to be used in the mode. Cur‐
1007 rently used only for flag, marquee, and nose modes.
1008 -bitmap filename
1010 The bitmap option sets the xbm, xpm, or ras file to be displayed
1011 with flag, image, life, life1d, maze, or puzzle mode. For eyes
1012 and pacman only a xbm file is accepted. Certain modes reject the
1013 bitmap if too big. /
1014
1017 -cpasswd crypted-password
1018 The cpasswd option sets the key to be this text string to unlock
1019 xlock instead of password file.
1020 -forceLogout minutes
1022 The forceLogout option sets minutes to auto-logout.
1023 -logoutButton minutes
1025 The logoutButton option sets minutes to logoutButton is available
1026 on password screen.
1027 -logoutButtonLabel string
1029 Text string is a message shown inside logout button when logout
1030 button is displayed. Defaults to "Logout".
1031 -logoutButtonHelp string
1033 Text string is a message shown outside logout button when logout
1034 button is displayed. Defaults to "Click the \"Logout\" button to
1035 log out current\n user and make workstation available."
1036 -logoutFailedString string
1038 Text string is a message shown when a logout is attempted and
1039 fails. Defaults to "Logout attempt FAILED.\n Current user could
1040 not be automatically logged out."
1041 -/+dtsaver
1043 Turn on/off CDE Saver Mode. This option is only available if CDE
1044 support was compiled in.
1045 -/+xinerama
1047 Turn on/off Xinerama. This option is only available if Xinerama
1048 support was compiled in.
1049 -modulepath path
1051 The modulepath option sets the directories that xlock searches for
1052 mode modules to load. It is a colon separated list of directories
1053 to search. If "%S" is included in the path, it is replaced by the
1054 default modulepath. To add a private module directory to the de‐
1055 fault path, use something like '%S:~/mymoduledir' as the path.
1056 This option is only available if module support was compiled in.
1057 -locksound string
1059 Text string references sound to use at lock time. Default sound,
1060 male voice: "Thank you, for your cooperation."
1061 -infosound string
1063 Text string references sound to use for information. Default
1064 sound, male voice: "Identify please."
1065 -validsound string
1067 Text string references sound to when a password is valid. Default
1068 sound, female voice: "Complete."
1069 -invalidsound string
1071 Text string references sound to when a password is invalid. De‐
1072 fault sound, female voice: "I am not programmed to give you that
1073 information."
1074 -startCmd string
1076 Text string command to execute when the screen is locked. Commonly
1077 used instructions include: "zaway". This command, if still running
1078 when the screensaver exits, will be killed.
1079 -endCmd string
1081 Text string command to execute when the screen is unlocked.
1082 -pipepassCmd string
1084 Text string command into which to pipe the password when the
1085 screen is unlocked.
1086 -logoutCmd string
1088 Text string command to execute when the program logs the user out
1089 (either via the autologout or by pressing the logout button).
1090 -mailCmd string
1092 Text string command to execute when the program to check mail.
1093 -mailIcon string
1095 Text string of file for the "mail arrived" bitmap.
1096 -nomailIcon string
1098 Text string of file for the "no mail" bitmap.
1099 -dpmsstandby seconds
1101 Allows one to set DPMS Standby for monitor (0 is defined as infi‐
1102 nite). (Horizontal sync on, Vertical sync off, RGB guns off,
1103 power supply on, tube filaments energized, (screen saver mode).
1104 Typical 17 inch screen... 110 out of 120 watts with a 3 sec re‐
1105 covery time.) This option is only available if DPMS support was
1106 compiled in. Minimum timeout is 5 seconds.
1107 -dpmssuspend seconds
1109 Allows one to set DPMS Suspend for monitor (0 is defined as infi‐
1110 nite). (Horizontal sync off, Vertical sync on, RGB guns off,
1111 power supply off, tube filaments energized. Typical 17 inch
1112 screen ... 15 out of 120 watts with a 3 sec recovery time.) This
1113 option is only available if DPMS support was compiled in. Minimum
1114 timeout is 5 seconds.
1115 -dpmsoff seconds
1117 Allows one to set DPMS Power Off for monitor (0 is defined as in‐
1118 finite). (Horizontal sync off, Vertical sync off, Small auxiliary
1119 circuit stays on to monitor the HS/VS signals to enable power on
1120 when data needs to be displayed on the screen. Typical 17 inch
1121 screen ... 5 out of 120 watts with a 10 sec recovery time.) This
1122 option is only available if DPMS support was compiled in. Minimum
1123 timeout is 5 seconds.
1124
1127 -neighbors num
1128 The neighbors option sets the number of neighbors of a cell to 3,
1129 4, 6, 9 (may not have real mathematical meaning), or 12 for sev‐
1130 eral automata modes (ant, bug, demon, dilemma, life, loop, voters,
1131 wator, and wire) (bug and loop do not span this full range). Set‐
1132 ting it to 0 typically randomizes this, except where bitmaps are
1133 used (dilemma, life, voters, and wator).
1134 -/+eyes
1136 Turn on and off eyes for ant, ant3d, and bug.
1137 -/+cycle
1139 Turn on and off colour cycling in crystal, lyapunov, mandelbrot,
1140 starfish, swirl, tetris, tik_tak, toneclock, and tube.
1141 -/+label
1143 Turn on and off alternate space and number labeling in apollonian.
1144 For ant and ant3d this turns on and off the labeling of the rule.
1145 For life and life3d this turns on and off the labeling of the pat‐
1146 tern name and rule.
1147 -/+serial
1149 Turn on and off sequential allocation of colors in kaleid. For
1150 life and life3d this turns on and off the picking of sequential
1151 patterns (to be used with middle button of the mouse).
1152 -/+trackmouse
1154 Turn on and off mouse interaction in eyes, fire, julia, solitaire,
1155 sballs, swarm, and tetris. For maze, pacman, solitaire and tetris
1156 this may not be available depending on how xlock was configured.
1157 -/+texture
1159 Turn on and off texturing in fire, lament and sballs. This may
1160 not be available depending on how xlock was configured.
1161 -rule <rule>
1163 The rule string is defined as B<neighborhood>/S<neighborhood> for
1164 life and life3d. Special parameters: P, picks a random rule from
1165 all rules that have known patterns; G, picks a random rule from
1166 all rules that have known gliders. For life a good example is
1167 Conway's rule which is B3/S23. Others are B36/S23 and
1168 B3678/S34678. For life3d good examples are Bay's rules which are
1169 B5/S45, B6/S567, B5/S56, and B67/S67. The rule string is defined
1170 as a binary string (requires at least one 1 and one 0) for ant and
1171 a base 4 (or quadranary) string (requires 3 of 4 digits to be rep‐
1172 resented) for ant3d. Here a special parameter, T and then a num‐
1173 ber, will pick a specific table.
1174 -lifefile filename
1176 The lifefile option sets the life and life3d lifeform. Only one
1177 format is currently supported, similar to the #P xlife format.
1178 For life3d, 2 linefeeds in a row are assumed to advance the depth.
1179 -arms num
1181 Allows one to set the number of arms in anemone.
1182 -finpoints num
1184 Allows one to set the width of the arms in anemone.
1185 -width num
1187 Allows one to set the final number of points in each array of
1188 anemone.
1189 -withdraws num
1191 Allows one to set the withdraw frequency in
1192 anemone.
1194 -turnspeed num Allows one to set the turning speed in
1195 -/+truchet
1197 Turn on and off Truchet lines (trail) in ant.
1198 -/+altgeom
1200 Turn on and off alternate geometries (off euclidean space, on in‐
1201 cludes spherical and hyperbolic) in apollonian mode.
1202 -whalespeed num
1204 Allows one to set the speed of the whales and dolphin in atlantis.
1205 -/+boil
1207 Turn on and off having the bubbles bubble up in bubble.
1208 -nx num
1210 Allows one to set the number of unit cells in x-direction in crys‐
1211 tal.
1212 -ny num
1214 Allows one to set the number of unit cells in y-direction in crys‐
1215 tal.
1216 -/+centre
1218 Turn on and off the centering on screen in crystal.
1219 -/+maxsize
1221 Turn on and off the centering on screen in crystal.
1222 -/+cell
1224 Turn on and off the drawing of unit cell in crystal.
1225 -/+grid
1227 Turn on and off the drwing of grid of unit cells (if -cell is on)
1228 in crystal.
1229 -/+garden
1231 Turn off and on garden look in daisy.
1232 -/+binary
1234 Turn on and off the binary clock in dclock.
1235 -/+led
1237 Turn on and off the led clock in dclock.
1238 -/+popex
1240 Turn on and off the population explosion counter in dclock.
1241 -/+forest
1243 Turn on and off the tropical deforest (hectares/acres) counter in
1244 dclock.
1245 -/+hiv
1247 Turn on and off the HIV infection counter in dclock.
1248 -/+lab
1250 Turn on and off the Animal Research counter in dclock.
1251 -/+veg
1253 Turn on and off the Animal Consumation counter in dclock.
1254 -/+y2k
1256 Turn on and off the Year 2000 countdown in dclock.
1257 -/+millennium
1259 Turn on and off the Second Millennium (January 1, 2001) countdown
1260 in dclock.
1261 -bonus value
1263 Allows one to set the bonus for cheating... between 1.0 and 4.0 in
1264 dilemma.
1265 -/+conscious
1267 Turn off and on self-awareness in dilemma.
1268 -/+grow
1270 Turn on and off growing fractals (else they are animated) for
1271 drift.
1272 -/+liss
1274 Turn on and off using lissajous figures to get points for drift.
1275 -/+fog
1277 Turn on and off fog for fire.
1278 -/+shadows
1280 Turn on and off shadows for fire.
1281 -trees num
1283 Validate the displaying of trees for fire if greater than zero.
1284 -/+invert
1286 Turn on and off inverting of the flag.
1287 -/+rotate
1289 Turn on/off rotating around attractor in flow.
1290 -/+ride
1292 Turn on/off rideing in the flow.
1293 -/+box
1295 Turn on/off bounding box in flow.
1296 -/+periodic
1298 Turn on/off periodic attractors in flow.
1299 -/+search
1301 Turn on/off search for new attractors in flow.
1302 -/+dbuf
1304 Turn on/off double buffering in flow.
1305 -/+tracks
1307 Turn on and off star tracks in galaxy.
1308 -/+light
1310 Turn on and off lighting of the planet for glplanet.
1311 -/+bounce
1313 Turn on and off bouncing movement of the planet for glplanet.
1314 -pimage filename
1316 Use the named xbm or xpm file for texturing the planet for
1317 glplanet. Use BUILTIN as filename for the builtin image taken
1318 from Xearth.
1319 -/+roll
1321 Turn on and off rolling of the planet for glplanet.
1322 -/+rotate
1324 Turn on and off rotation of the planet for glplanet.
1325 -/+texture
1327 Turn on and off texturing of the planet for glplanet.
1328 -/+stars
1330 Turn on and off showing stars in the background for glplanet.
1331 -/+decay
1333 Turn on and off decaying orbits for grav.
1334 -/+trail
1336 Turn on and off decaying trail of dots for grav.
1337 -/+ellipse
1339 Turn on and off ellipse format in helix.
1340 -/+martin
1342 Turn on and off Barry Martin's square root hop.
1343 -/+popcorn
1345 Turn on and off Clifford A. Pickover's popcorn hop.
1346 -/+ejk1...ejk6
1348 Turn on and off Ed J. Kubaitis' hops.
1349 -/+rr
1351 Turn on and off Renaldo Recuerdo's hop.
1352 -/+jong
1354 Turn on and off Jong's hop.
1355 -/+sine
1357 Turn on and off Barry Martin's sine hop.
1358 -pattern <pattern>
1360 Allows one to set the pattern for juggle.
1361 -tail num
1363 Minimum Trail Length for juggle.
1364 -/+real
1366 Turn on/off real-time juggling for juggle. Deprecated. There
1367 should be no need to turn off real-time juggling, even on slow
1368 systems. Adjust speed using -count.
1369 -/+describe
1371 Turn on/off pattern descriptions in juggle.
1372 -/+balls
1374 Turn on/off Balls in juggle.
1375 -/+clubs
1377 Turn on/off Clubs in juggle.
1378 -/+torches
1380 Turn on/off Flaming Torches in juggle.
1381 -/+knives
1383 Turn on/off Knives in juggle.
1384 -/+rings
1386 Turn on/off Rings in juggle.
1387 -/+bballs
1389 Turn on/off Bowling Balls in juggle.
1390 -/+planetary
1392 Turn on and off planetary gears in gears.
1393 -planetsize num
1395 Sets the size of the screen for planetary option in gears. This
1396 is for machines with slower CPU. (Set to 0 for full screen).
1397 -/+disconnected
1399 Turn on and off disconnected pen movement in kaleid.
1400 -/+alternate
1402 Turn on and off alternate rotated display mode kaleid.
1403 -/+quad
1405 Turn on and off quad mirrored/rotated mode similar to size 4 in
1406 kaleid.
1407 -/+oct
1409 Turn on and off oct mirrored/rotated mode similar to size 8 in
1410 kaleid.
1411 -/+linear
1413 Turn on and off Cartesian/Polar coordinate mode in kaleid.
1414 -/+conway
1416 Turn on and off John Conway's original Life rule B3/S23 life.
1417 -/+highlife
1419 Turn on and off David Bell's HighLife rule B36/S23 life.
1420 -/+daynight
1422 Turn on and off Nathan Thompson's Day and Night rule B3678/S34678
1423 life.
1424 -/+callahan
1426 Turn on and off Paul Callahan's B2o/S2m34 hexagonal life.
1427 -/+andreen
1429 Turn on and off Bob Andreen's B2o3o4m/S2om4o hexagonal life.
1430 -/+trilife
1432 Turn on and off Carter Bays' B45/S34 triangular life.
1433 -/+trilife1
1435 Turn on and off Carter Bays' B456/S45 triangular life.
1436 -/+trilife2
1438 Turn on and off Carter Bays' B45/S23 triangular life.
1439 -/+totalistic
1441 Turn on and off totalistic rules for life1d. If this is off then
1442 it follows rules of the LCAU collection. These rules may not be
1443 symmetric and are more general.
1444 -/+additive
1446 Turn on and off additive functions mode in lisa.
1447 -/+dissolve
1449 Turn on and off disolving state in loop.
1450 -/+evolve
1452 Turn on and off Evolving Loops in loop.
1453 -/+langton
1455 Turn on and off Langton Loops for loop.
1456 -/+sheath
1458 Turn on and off sheath extension for loop.
1459 -/+wrap
1461 Turn on and off wrapping of borders for loop.
1462 -increment num
1464 Sets the option for increasing orders in mandelbrot.
1465 -/+alpha
1467 Turn on and off interior displaying level of closest return in
1468 mandelbrot.
1469 -/+binary
1471 Turn on and off binary decomposition color modulation in mandel‐
1472 brot.
1473 -/+dem
1475 Turn on and off Distance Estimator Method (instead of escape time)
1476 in mandelbrot.
1477 -/+index
1479 Turn on and off interior displaying iteration of closest return in
1480 mandelbrot.
1481 -/+lyap
1483 Turn on and off interior displaying according to an estimate of
1484 the Lyapunov exponent in mandelbrot.
1485 -/+pow
1487 Turn on and off adding z^z in mandelbrot.
1488 -/+sin
1490 Turn on and off adding sin(z) in mandelbrot.
1491 -/+noants
1493 Turn off and on ants in moebius.
1494 -/+solidmoebius
1496 Turn on and off solid Mobius strip in moebius.
1497 -/+atoms
1499 Turn on and off the drawing of spheres for the atoms in molecule.
1500 -/+bbox
1502 Turn on and off showing the molecules in a blue box in molecule.
1503 -/+bonds
1505 Turn on and off the drawing of the atomic bonds in molecule.
1506 -molecule filename
1508 Read a molecule structure from a pdb file in molecule.
1509 -/+labels
1511 Turn on and off the labeling of the atoms in molecule.
1512 -spin{x|y|z}
1514 Set the axis for molecule rotation in molecule. The default is
1515 "XYZ".
1516 +spin
1518 Turn off the molecule rotation in molecule.
1519 -/+titles
1521 Turn on and off the molecule description in molecule.
1522 -/+wander
1524 Turn on and off the moving of the molecule on a sinoid curve in
1525 molecule. Turn on and off movements in fire.
1526 -/+ammann
1528 Turn on and off lines for penrose.
1529 -increment value
1531 Allows fine adjustments to order in mandelbrot.
1532 -/+erase
1534 Turn on and off erasing for spline. If this option is on, cycles
1535 is divided by 64 to compute the number of lines, so as to be com‐
1536 patible when using -fullrandom.
1537 -factory num
1539 Number of extra factory parts in pipes.
1540 -/+fisheye
1542 Turn on if you want a zoomed-in view of pipes.
1543 -/+tightturns
1545 Turn on if you want the pipes to bend more often.
1546 -/+rotatepipes
1548 Turn on if you want the pipe system rotated in pipes.
1549 -/+complete
1551 Turn on or off complete graph morphing in qix.
1552 -msg textstring
1554 Allows one to pass different explosion elements to pyro2. The ex‐
1555 plosion types is one of &0, &1, ... &9, &a, ... &f each of which
1556 presents a different type of explosion. Normal text can be sent,
1557 the string may contain blanks if quoted. An operation system logo
1558 will be shown, if the # sign is sent.
1559 -fnt font
1561 Allows one to pass different elements to pyro2.
1562 -size[xyz] num
1564 Number represents the number of cubies on the x, y, or z axis.
1565 Negative numbers offer randomness from 2 to the absolute value of
1566 the number. star.
1567 -/+hideshuffling
1569 Turn on or off hidden shuffle phase for rubik and skewb.
1570 -/+border
1572 Turn on or off borders in shape.
1573 -/+shadowing
1575 Turn on or off shadowing in shape.
1576 -/+stippling
1578 Turn on or off stippling in shape.
1579 -intensity value
1581 Set the brightness (default 2185) of the sierpinski structure for
1582 sierpinski3d.
1583 -maxdepth value
1585 Set the maximum depth (up to 10) of the sierpinski structure for
1586 sierpinski3d.
1587 -speed value
1589 Determines after how much steps the depth changes for sierpin‐
1590 ski3d.
1591 -trek num
1593 If its a high number you will see the space ship all the time in
1594 star.
1595 -/+rock
1597 Turn on and off rocks for star. If this is off, stars will be
1598 seen instead.
1599 -/+straight
1601 Turn on if star gets you motion sick.
1602 -cyclepeed num
1604 Set speed of cycling in starfish.
1605 -rotation num
1607 Set rotation velocity in starfish.
1608 -thickness num
1610 Set thickness in starfish.
1611 -/+rock
1613 Turn on and off blob for starfish.
1614 -curve num
1616 Set the curve factor of the attractors for strange.
1617 -points num
1619 Change the number of points/iterations each frame for strange.
1620 -point-size num
1622 Change the size of individual points for strange.
1623 -zoom float
1625 Zoom in or out for strange.
1626 -brightness float
1628 Adjust the brightness for accumulator mode for strange.
1629 -motion-blur float
1631 Adds motion blur for strange.
1632 -spinspeed num
1634 Set speed of rotation, in degrees per frame for superquadrics.
1635 -/+bonus
1637 Turn on in tetris to see 5 square bonus pieces.
1638 -/+well
1640 Turn on in tetris to see welltris.
1641 -ttfont filename
1643 Sets the True Type font file (or font directory) used for text3d
1644 -extrusion num
1646 Sets length of the text extrusion for text3d
1647 -rot_amplitude float
1649 Sets rotation amplitude value of each letter for text3d
1650 -rot_frequency float
1652 Sets rotation frequency for text3d
1653 -/+no_split
1655 Turn on and off word splitting for text3d
1656 -ttanimate function_name
1658 Sets the animation function used for text3d. Currently one of :
1659 Random FullRandom Default Default2 None Crazy UpDown Ex‐
1660 trude RotateXY RotateYZ Frequency Amplitude
1661 -speed km/h
1663 The speed for all planes in km/h for xcl.
1664 -frametime microseconds
1666 The time for one frame on the screen. This time is used to calcu‐
1667 late the delay time and depends on the speed of the X server for
1668 xcl.
1669 -line_length mm
1671 The distance between the pilot and the plane for xcl.
1672 -spectator mm
1674 The distance between spectator and pilot. It should be grater than
1675 the line_length and the half wing width of the plane to be not
1676 dangerous for the spectator for xcl.
1677 -viewmodel
1679 Shows an animated view of one model for xcl.
1680 -/+oldcolor
1682 Sets the colors for the first two planes fixed to red and yellow
1683 in xcl.
1684 -xcldebug
1686 Shows some additional timing information to make sure that the
1687 calibrate procedure goes right in xcl.
1688 -automatic
1690 The auto scale for automatic fit into the window is Deactivated
1691 with this option for xcl.
1692 -randomstart
1694 Use a random start point for models at startup for xcl.
1695 -duration seconds
1697 Allows one to set a duration for a mode in random. Duration of 0
1698 is defined as infinite.
1699 -/+fullrandom
1701 Turn on/off randomness options within modes in random. Not imple‐
1702 mented for all mode options.
1703 -modelist textstring
1705 Allows one to pass a list of files to randomly display to random.
1706 "all" will get all files but blank (and bomb if compiled in).
1707 "all,blank" will get all modes. "all,-image bounce,+blank" will
1708 get all modes excluding image and bounce modes. "bug wator" will
1709 get only bug and wator. "allgl" will get only the GL modes if
1710 compiled in, all-allgl will get all excluding the GL modes, "all‐
1711 nice" will weed out high cpu usage modes (as well as hackers and
1712 gl modes). "allxpm" will get all modes that use xpm. "allwrite"
1713 will get all modes that take advantage of writable colormaps (not
1714 including xpm). "all3d" will get all the modes that support this
1715 option. "allmouse" will get all the modes that support mouse in‐
1716 teraction. Similarly, "allautomata" for automata modes, "allfrac‐
1717 tal" for fractal modes, "allgeometry" for geometry modes,
1718 "allspace" for space modes. The random mode itself can not be
1719 referenced.
1720 -/+sequential
1722 Turn on non-random random option.
1723
1726 xlock can appear to hang if it is competing with a high-priority
1727 process for the CPU. For example, if xlock is started after a process
1728 with 'nice -20' (high priority), xlock will take considerable amount
1729 of time to respond.
1730
1733 If the machine is using a shadow password system, then xlock may not be
1734 set up to get the real password and so must be given one of its own.
1735 This can be either on the command line, via the -cpasswd option, or in
1736 the file $HOME/.xlockrc, with the first taking precedence. In both
1737 cases an encrypted password is expected (see makekey(8)). If neither
1738 is given, then xlock will prompt for a password and will use that, also
1739 storing an encrypted version of it in $HOME/.xlockrc for future use.
1740
1743 If you use ssh-agent(1) to avoid entering a passphrase every time you
1744 use one of your ssh(1) private keys, it's good security practice to
1745 have ssh-agent forget the keys before you leave your terminal unat‐
1746 tended. That way, an attacker who takes over your terminal won't be
1747 able to use your private ssh keys to log in to other systems. Once you
1748 return to your terminal, you can enter the passphrase and re-add the
1749 keys to ssh-agent. There are a couple of ways in which xlock can help
1750 to automate this process. Firstly, the startCmd option allows xlock to
1751 be configured to run 'ssh-add -D' every time you lock the screen, so
1752 that your keys are automatically deleted from ssh-agent. If the
1753 passphrase on your ssh keys is the same as your password, then xlock
1754 can also be made to re-add the keys to ssh-agent when you unlock the
1755 screen, via the pipepassCmd option. This requires a bit of scripting,
1756 as the command must read your password from standard input and then au‐
1757 tomate the interaction with ssh-add to re-add the keys. There is an
1758 example of such a script in the xlock distribution - see etc/xlockssh*
1759
1762 "kill -KILL xlock " causes the server that was locked to be unusable,
1763 since all hosts (including localhost) were removed from the access con‐
1764 trol list to lock out new X clients, and since xlock could not catch
1765 SIGKILL, it terminated before restoring the access control list. This
1766 will leave the X server in a state where "you can no longer connect to
1767 that server, and this operation cannot be reversed unless you reset the
1768 server." -From the X11R4 Xlib Documentation, Chapter 7.
1769 NCD terminals do not allow xlock to remove all the hosts from the ac‐
1770 cess control list. Therefore you will need to use the "-remote" and
1771 "-allowaccess" switches. If you happen to run without "-allowaccess"
1772 on an NCD terminal, xlock will not work and you will need to reboot the
1773 terminal, or simply go into the SETUP menus, under 'Network Parame‐
1774 ters', and turn off TCP/IP access control.
1775
1777 X(1), Xlib Documentation.
1778
1781 Maintained by:
1782 David A. Bagley, <bagleyd AT verizon.net>
1783 The latest version is currently at:
1785 https://www.sillycycle.com/xlock/
1786 http://www.ibiblio.org/pub/Linux/X11/screensavers/
1787 Original Author:
1789 Patrick J. Naughton, <naughton AT eng.sun.com>
1790 Mailstop 21-14
1791 Sun Microsystems Laboratories, Inc.
1792 Mountain View, CA 94043
1793 415/336-1080
1794 with many additional contributors.
1796
1799 Copyright (c) 1988-1991 by Patrick J. Naughton
1800 Copyright (c) 1993-2020 by David A. Bagley
1801 Permission to use, copy, modify, and distribute this software and its
1803 documentation for any purpose and without fee is hereby granted, pro‐
1804 vided that the above copyright notice appear in all copies and that
1805 both that copyright notice and this permission notice appear in sup‐
1806 porting documentation.
1807 This file is provided AS IS with no warranties of any kind. The author
1809 shall have no liability with respect to the infringement of copyrights,
1810 trade secrets or any patents by this file or any part thereof. In no
1811 event will the author be liable for any lost revenue or profits or
1812 other special, indirect and consequential damages.
1813 The original BSD daemon is Copyright (c) 1988 Marshall Kirk McKusick.
1814 All Rights Reserved.
1815 DEC, HP, IBM, Linux, SCO, SGI, and Sun icons have their respective
1816 copyrights.
1817X11R6 Contrib 29 Dec 2020 XLOCK(1)