Get sunrise and sunset times

l=12765843;curl -s http://weather.yahooapis.com/forecastrss?w=$l|grep astronomy| awk -F\" '{print $2 "\n" $4;}'

This will get the sunrise and sunset times of a specific location. To be able to determine $l you need to first go to http://weather.yahoo.com/ and look up your location. The last numbers in the URL will be the $l Instead of forecastrss?w=$l you can also use forecastrss?p=$l and use the RSS link of the city you found. Also see http://developer.yahoo.com/weather/ for more information

Sample Output

7:26 am
6:17 pm

By: houghi

2010-10-24 20:02:30

awk grep

1 Alternatives + Submit Alt

Get sunrise time for any city, by name

Uses Google's "OneBox" to look up the sunrise in any city by name. If no city is specified, it defaults to Seattle. For the sunset time, you change the search query to "sunset", like so, . sunset() { city=${1-Seattle}; w3m "google.com/search?q=sunset:$city" | sed -r '1,/^\s*1\./d; /^\s*2\./,$d; /^$/d' ;} . "OneBox" is Google's term for that box that appears before the organic search results that has useful information that Google thinks you might be looking for (mathematical calculations, weather, currency conversions, and such). I'm not actually using OneBox correctly, but that's because I'm not sure that there is a "correctly". I looked for a command line API, but couldn't find one, so I settled on parsing stdout from the fantastic w3m web browser. I use the sed script to show only the first hit by deleting everything from the beginning of the file until it sees " 1." and then deleting everything from " 2." to the end of the file. Ugly and fragile, yes, but it works fine. . BUG1: w3m represents the picture of the sun rising, "weather_sunset-40.gif" as "[weat]" which is slightly confusing and probably should be removed. . BUG2: The output is more easily readable by a human, which means it's less useful for scripting. Show Sample Output
This is sample output - yours may be different.
```
$ sunrise
    [weat] 7:56am Wednesday (PDT) - Sunrise in Seattle, WA
           18 hours 16 minutes from now
$ sunrise berlin
    [weat] 7:05am Wednesday (CET) - Sunrise in Berlin, Germany
           9 hours 25 minutes from now
$ sunrise moscow
    [weat] 7:39am Wednesday (MSK) - Sunrise in Moscow, Russia
           7 hours 55 minutes from now
$ sunrise tokyo
    [weat] 6:04am Wednesday (JST) - Sunrise in Tokyo, Japan
           20 minutes from now
```
0

sunrise() { city=${1-Seattle}; w3m "google.com/search?q=sunrise:$city" | sed -r '1,/^\s*1\./d; /^\s*2\./,$d; /^$/d' ;}

hackerb9 · 2010-11-02 21:24:23 3

What Others Think

Great, that is definitely shorter than what I was trying (using NOAA), but it doesn't leave much room for the auto-dimming code at sunset. I also am displeased by having to set the "l" variable. I wonder if we can use /etc/timezone instead.

hackerb9 · 703 weeks and 2 days ago

Great one! Might be useful for my home automation I am setting up.

DaveQB · 703 weeks and 1 day ago

Timezone go from east to west, sunset goes (more) from north to south. You should be able to calculate the sunset and sunrise with the following information: latitude and longitude, date, timezone. Not sure how that is done. http://williams.best.vwh.net/sunrise_sunset_algorithm.htm gives an idea. You still need Latitude and longitude

houghi · 703 weeks and 1 day ago

anyone got a .bashrc alias for this? I failed at it. - Thanks.

Habitual · 703 weeks ago

.bashrc: echo Sunrise is at `l=12776844;curl -s http://weather.yahooapis.com/forecastrss?w=$l|grep astronomy| awk -F\" '{print $2}'` echo Sunset is at `l=12776844;curl -s http://weather.yahooapis.com/forecastrss?w=$l|grep astronomy| awk -F\" '{print $4}'` good enough.

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ChristianBaker · 55 weeks and 4 days ago

pugpuppies95 · 38 weeks and 2 days ago

What do you think?

Any thoughts on this command? Does it work on your machine? Can you do the same thing with only 14 characters?

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