REDSHIFT(1)							   User Commands						       REDSHIFT(1)

NAME

       redshift - Set color temperature of display according to time of day.

SYNOPSIS

       redshift
	-l LAT:LON -t DAY:NIGHT [OPTIONS...]

DESCRIPTION

       redshift  adjusts the color temperature of your screen according to your surroundings. This may help your eyes hurt less if you are working
       in front of the screen at night.

       The color temperature is set according to the position of the sun. A different color temperature is set during night  and  daytime.  During
       twilight  and  early  morning,  the  color  temperature transitions smoothly from night to daytime temperature to allow your eyes to slowly
       adapt.

OPTIONS

       -h     Display this help message

       -v     Verbose output

       -V     Show program version

       -b N   Screen brightness to apply (max is 1.0)

       -c FILE
	      Load settings from specified configuration file

       -g R:G:B
	      Additional gamma correction to apply

       -l LAT:LON
	      Your current location

       -l PROVIDER
	      Select provider for automatic location updates (Type `list' to see available providers)

       -m METHOD
	      Method to use to set color temperature (Type `list' to see available methods)

       -o     One shot mode (do not continuously adjust color temperature)

       -O TEMP
	      One shot manual mode (set color temperature)

       -x     Reset mode (remove adjustment from screen)

       -r     Disable temperature transitions

       -t DAY:NIGHT
	      Color temperature to set at daytime/night

       The neutral temperature is 6500K. Using this value will not change the color temperature of the display. Setting the color temperature to a
       value higher than this results in more blue light, and setting a lower value will result in more red light.

       Default values:

	      Daytime temperature: 5500K Night temperature: 3700K

       Please report bugs to <https://bugs.launchpad.net/redshift>

SEE ALSO

       The  full  documentation  for redshift is maintained as a Texinfo manual.  If the info and redshift programs are properly installed at your
       site, the command

	      info redshift

       should give you access to the complete manual.

AUTHOR

       redshift was written by Martin Koelewijn and Jon Lund Steffensen.

       This manual page was created by Franziska Lichtblau <rhalina@old-forest.org> for the Debian project (and may be used by others).

redshift 1.7							     June 2012							       REDSHIFT(1)