sct.1 (1811B)
1 .\" $Id: sct.1 23 2020-01-28 23:31:17Z umaxx $ 2 .\" Copyright (c) 2017-2020 Joerg Jung <mail@umaxx.net> 3 .\" 4 .\" Permission to use, copy, modify, and distribute this software for any 5 .\" purpose with or without fee is hereby granted, provided that the above 6 .\" copyright notice and this permission notice appear in all copies. 7 .\" 8 .\" THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 9 .\" WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 10 .\" MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 11 .\" ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 12 .\" WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 13 .\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 14 .\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 15 .Dd 13 June 2026 16 .Dt SCT 1 17 .Os 18 .Sh NAME 19 .Nm sct 20 .Nd set the color temperature of the screen 21 .Sh SYNOPSIS 22 .Nm sct 23 .Op Ar temp 24 .Sh DESCRIPTION 25 .Nm 26 sets the color temperature of the screen to 27 .Ar temp 28 or 6500K if not specified. 29 .Ar temp 30 must be between 1000 and 10000. 31 .Sh EXIT STATUS 32 .Ex -std 33 .Sh EXAMPLES 34 Shift the screen temperature to campfire style: 35 .Bd -literal -offset indent 36 sct 4500 37 .Ed 38 .Sh SEE ALSO 39 .Xr Xorg 1 , 40 .Xr xrandr 1 , 41 .Xr X 7 42 .Sh STANDARDS 43 The 44 .Nm 45 utility follows and uses 46 .Xr XStandards 7 . 47 .Sh HISTORY 48 The first version of the 49 .Nm 50 utility appeared back in November 2015 within the following blog article: 51 .Lk http://www.tedunangst.com/flak/post/sct-set-color-temperature . 52 .Sh AUTHORS 53 .An -nosplit 54 The 55 .Nm 56 utility was written by 57 .An Ted Unangst Aq Mt tedu@openbsd.org 58 and further improved by 59 .An Joerg Jung Aq Mt mail@umaxx.net . 60 .Sh CAVEATS 61 .Nm 62 samples the color ramp in interval steps of 500 with 63 .Ar temp 64 values between steps being interpolated.