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Useless use of cat?

...at file.txt | grep foo | cut ... | cut .... I gave him a piece of my mind, and only after doing so visited the link he gave me referring to the origins of the award and the practice of doing so. Further searching led me to this question. Somewhat unfortunately despite conscious consideration, none o...
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Proper way to renew distribution certificate for iOS

... my provisioning files. How do I properly renew it? Should I revoke it now and request a new one? If I do that than will all my live apps be taken down? ...
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REST URI convention - Singular or plural name of resource while creating it

I'm new to REST and I've observed that in some RESTful services they use different resource URI for update/get/delete and Create. Such as ...
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How does data binding work in AngularJS?

... AngularJS remembers the value and compares it to a previous value. This is basic dirty-checking. If there is a change in value, then it fires the change event. The $apply() method, which is what you call when you are transitioning from a non-AngularJS wo...
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How to get ERD diagram for an existing database?

...alled referential integrity constraints) in a graph style. The table nodes and relations are layed out automatically, with a number of layout modes available. The resulting graph is unique as it displays all information in an optimal and readable layout. from its site ...
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What's the difference between echo, print, and print_r in PHP?

I use echo and print_r much, and almost never use print . 11 Answers 11 ...
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Core pool size vs maximum pool size in ThreadPoolExecutor

What exactly is the difference between core pool size and maximum pool size when we talk in terms of ThreadPoolExecutor ? Can it be explained with the help of an example? ...
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Sync data between Android App and webserver [closed]

I want to sync data (such as db record, media) between an Android App and a Server. If you've seen Evernote or similar Applications, you certainly understand what I mean. ...
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How can I pipe stderr, and not stdout?

I have a program that writes information to stdout and stderr , and I need to grep through what's coming to stderr , while disregarding stdout . ...
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How to avoid isset() and empty()

I have several older applications that throw a lot of "xyz is undefined" and "undefined offset" messages when running on the E_NOTICE error level, because the existence of variables is not explicitly checked using isset() and consorts. ...