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Cron jobs and random times, within given hours

I need the ability to run a PHP script 20 times a day at completely random times. I also want it to run only between 9am - 11pm. ...
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How to delete multiple values from a vector?

I have a vector like: a = c(1:10) and I need to remove multiple values, like: 2, 3, 5 8 Answers ...
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What are the applications of binary trees?

...ch applications where data is constantly entering/leaving, such as the map and set objects in many languages' libraries. Binary Space Partition - Used in almost every 3D video game to determine what objects need to be rendered. Binary Tries - Used in almost every high-bandwidth router for storing ro...
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What is the difference between Class and Klass in ruby?

What is the difference between Class and Klass? 4 Answers 4 ...
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Read input from console in Ruby?

...ing like that? Update Kernel.gets tries to read the params found in ARGV and only asks to console if not ARGV found. To force to read from console even if ARGV is not empty use STDIN.gets share | ...
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Record file copy operation with Git

...a file in git using git-mv the status shows that the file has been renamed and even if I alter some portions it still considers to be almost the same thing (which is good because it lets me follow the history of it). ...
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Disabled input text color

The simple HTML below displays differently in Firefox and WebKit-based browsers (I checked in Safari, Chrome and iPhone). ...
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How can I run PowerShell with the .NET 4 runtime?

...rShell (the engine) runs fine under .NET 4.0. PowerShell (the console host and the ISE) do not, simply because they were compiled against older versions of .NET. There's a registry setting that will change the .NET framework loaded systemwide, which will in turn allow PowerShell to use .NET 4.0 cla...
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How to calculate the number of days between two dates? [duplicate]

... I tested this with 2015-02-1 to 2015-03-01 and got 31 days. There's something wrong here... EDIT: Okay yeah.. javascript months are from 0-12 so if you're getting the input from a jquery datepicker or a regular normal date, subtract 1 form the month ...
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What is the difference between --save and --save-dev?

... Shorthand versions: -D is short for --save-dev and -S is short for --save – chrisco Mar 26 '17 at 14:07 ...