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How to get CRON to call in the correct PATHs

... I used /etc/crontab. I used vi and entered in the PATHs I needed into this file and ran it as root. The normal crontab overwrites PATHs that you have set up. A good tutorial on how to do this. The systemwide cron file looks like this: This has the userna...
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How does push notification technology work on Android?

... From what I've heard during an Android developers conference in Israel: There is simply a TCP socket waiting in accept mode on a cloud Google server. The TCP connection had been initiated by the Google Play application. That's why Google Play must be inst...
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How do I implement a callback in PHP?

... The manual uses the terms "callback" and "callable" interchangeably, however, "callback" traditionally refers to a string or array value that acts like a function pointer, referencing a function or class method for future invocation. This has allowed some elemen...
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Submit HTML form on self page

... I used <?php $_PHP_SELF ?> and got the error that action cannot be blank, i guess ill just leave it off – Drewdin Feb 18 '15 at 12:04 ...
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Good introduction to the .NET Reactive Framework [closed]

Aside from the Microsoft documentation, is there a good introduction and tutorial to the Microsoft Reactive (Rx) framework? ...
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C# How can I check if a URL exists/is valid?

... looks up a stock symbol on Yahoo! Finance, downloads the historical data, and then plots the price history for the specified ticker symbol. ...
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What is the difference between using IDisposable vs a destructor in C#?

...d a finalizer (destructor) the GC has to call it (even an empty finalizer) and to call it the object will always survive a gen 1 garbage collect. This will impede and slow down the GC. That's wht Marc says to call SuppressFinalize in the above code – Kevin Jones ...
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jQuery: Performing synchronous AJAX requests

...uery in the past, but I am completely stuck on this. I know about the pros and cons of using synchronous ajax calls, but here it will be required. ...
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Each for object? [duplicate]

... A javascript Object does not have a standard .each function. jQuery provides a function. See http://api.jquery.com/jQuery.each/ The below should work $.each(object, function(index, value) { console.log(value); }); Another option would be to use vanilla Ja...
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Ruby off the rails

... wrote a two part blog post on DSLs. I saw him give a presentation on DSLs and it was very good. I highly recommend reading these posts. I also found this excellent presentation on Ruby DSLs by Obie Fernandez. Highly recommended reading! ...