Visit The New, Modern Unix Linux Community

Linux and UNIX Man Pages

Test Your Knowledge in Computers #611
Difficulty: Easy
You can enter the Python interpreter by simply typing python on the command line (assume Python is installed).
True or False?
Linux & Unix Commands - Search Man Pages

gtk-redshift(1) [debian man page]

REDSHIFT(1)							   User Commands						       REDSHIFT(1)

gtk-redshift - Set color temperature of display according to time of day (gtk-Frontend). SYNOPSIS
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. -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 <> 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 <> for the Debian project (and may be used by others). redshift 1.7 June 2012 REDSHIFT(1)

Check Out this Related Man Page

DIGITEMP(1)						      General Commands Manual						       DIGITEMP(1)

digitemp - program to read from temperature sensors. SYNOPSIS
digitemp [options] DESCRIPTION
DigiTemp uses the Dallas 1-wire bus to read temperatures from digital sensors attached to a serial port adapter. It handles initializing the bus, searching for attached devices, reading devices and custom log strings. It suports the following temperature devices: DS1820, DS18S20, DS18B20, DS1822 It also handles the DS2406 1-wire hub switches, and DS2422 and DS2423 counters. DigiTemp uses either the DS9097 passive serial port adapter, or the DS2480B based DS9097U adapter (recommended). OPTIONS
At least 1 action must be given, along with some optional arguments. Actions are one (and only on) of the -w -t -a -w options -h, -? Show summary of options. -v Show verbose output. -i Initialize .digitemprc file, search the bus for all supported devices. -w Walk the full device tree and display the serial number and type of all devices detected on the bus. -s /dev/ttyS0 Set serial port to use. Make sure you have permission to access this port. -l /var/log/temperature Send output to logfile, the output format is defined by the .B -o command -c digitemp.conf Set digitemp configuration file. The default is .digitemprc in the current directory. -r 1000 Read delay in ms. This sets the amount of time to wait between sending the temperature conversion command and reading the result. The DS18S20 takes about 750mS to do the temperature conversion. Default is 1000mS (1 sec). -t # Read sensor number #, the # depends on the order of the sensors in the .digitemprc file. -q Quiet output, no copyright banner. -a Read all sensors. -A Treat DS2438 as A/D converter, output raw voltages -d 5 Delay between samples (in seconds). -n 50 Number of times to repeat the command. -O"counter format string" See Counter Format below. -o [1..3] ["output format string"] See Temperature Format below. -H"Humidity format string" See Humidity Format below. Temperature Format The temperature format can be either a numeric value, or a string. The numeric values select pre-configured output formats: 1 = One line per sensor, time, C, F (default) 2 = One line per sample, elapsed time, temperature in C 3 = Same as #2, except temperature is in F #2 and #3 have the data separated by tabs, suitable for import into a spreadsheet or other graphing software. The format string uses strftime tokens plus 5 special ones for DigiTemp: %s for sensor # %C for centigrade %F for fahrenheit %R to output the hex serial number %N for seconds since Epoch. The case of the token is important! The default format string is: "%b %d %H:%M:%S Sensor %s C: %.2C F: %.2F" which gives you an output of: May 24 21:25:43 Sensor 0 C: 23.66 F: 74.59 The DS2438 sensor can be used for a variety of things. It includes a temperature sensor and A/D converter. DigiTemp defaults to using it as a humidity sensor. The raw voltages can be displayed by passing the -A argument When the -o2 or -o3 log options are used the attached DS2438's temperatures will be output without the humidity. Counter Format String The counter format string is similar, adding these tokens: %n is the counter #, which depends on its position in the .digitemprc file %C is the count in decimal. Humidity Format String The Humidity format string is the same as the temperature format string with the addition of this format specifier: %h is the humidity in 0-100% AUTHOR
This manual page was written by Jesus Roncero <>, for the Debian project (but may be used by others). Modifications by Brian C. Lane <> UPDATES
DigiTemp updates can be found on the website. June 2005 DIGITEMP(1)

Featured Tech Videos