SCTD(1)

NAME
sctd - daemon to shift color temperature of the screen

SYNOPSIS
sctd
sctd version

DESCRIPTION
sctd is a lightweight daemon wrapper script around sct(1). The color temperature of the screen is increased or decreased dynamically depending on the current time of the day.

The arguments are as follows:

version
    Print the version and copyright information of sctd to the standard output, then exit.

sctd does not expect any arguments. The default temperature value is 4500 and incremented or decremented in steps of two every minute.

EXIT STATUS

EXAMPLES
Run sctd to shift the screen temperature dynamically:

    $ sctd

Print version and copyright information of sctd to the standard output stream and exit successfully:

    $ sctd version

SEE ALSO
sct(1)

STANDARDS
The sctd utility is not compliant with any specification.

Where portability is paramount, do not use it.

HISTORY
The first version of the sctd utility appeared back in May 2017 in the following Lobsters article: https://lobste.rs/s/stlowv/sctd_minimal_daemon_for_sct.

AUTHORS
-nosplit The sctd utility was written by Aaron Bieber <abieber@openbsd.org> and further improved by Joerg Jung <jung@openbsd.org>.

CAVEATS
Since sct(1) rounds the given values in steps of 500, the sctd adjusts the screen temperature only about every 4 hours.

HOMEPAGE
https://www.umaxx.net/