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Design patterns or best practices for shell scripts [closed]

... I wrote quite complex shell scripts and my first suggestion is "don't". The reason is that is fairly easy to make a small mistake that hinders your script, or even make it dangerous. That said, I don't have other resources to pass you but my personal experienc...
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C# DLL config file

... var result = (from item in list where Convert.ToString(item.ElementInformation.Properties["name"].Value) == propertyName select item).FirstOrDefault(); if (result != null) { if (result.ElementInform...
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Fixed point vs Floating point number

I just can't understand fixed point and floating point numbers due to hard to read definitions about them all over Google. But none that I have read provide a simple enough explanation of what they really are. Can I get a plain definition with example? ...
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How to fix the uninitialized constant Rake::DSL problem on Heroku?

...in the Gemfile to get around the version 0.9.2 Rake::DSL problem. After I converted the app to Rails 3.2.0 (Heroku Cedar stack), I was having a problem with the worker (a rake task) crashing. I changed "gem 'rake', '0.8.7'" to "gem 'rake'", which bundled rake version 0.9.2.2. The worker stopped cra...
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Who architected / designed C++'s IOStreams, and would it still be considered well-designed by today'

... does it the other way around by using stringstream as the standard way of converting to a string. Poor support for i18n Iostream-based output splits string literals into pieces. cout << "My name is " << name << " and I am " << occupation << " from " << hometow...
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What is PECS (Producer Extends Consumer Super)?

...t.add("prem"); List<Object> listObject=list; //Type mismatch: cannot convert from List<String> to List<Object> at Compiletime more examples bounded(i.e. heading toward somewhere) wildcard : There are 3 different flavours of wildcards: In-variance/Non-variance: ? or ? ex...
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What is the purpose of Android's tag in XML layouts?

... Romain Guy's post on the <merge /> tag, but I still don't understand how it's useful. Is it a sort-of replacement of the <Frame /> tag, or is it used like so: ...
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What is the difference between inversedBy and mappedBy?

I am developing my application using Zend Framework 2 and Doctrine 2. 4 Answers 4 ...
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PHP_SELF vs PATH_INFO vs SCRIPT_NAME vs REQUEST_URI

...SELF into SCRIPT_FILENAME + PATH_INFO Server performs alias resolution and converts the entire url path to a system file path to get SCRIPT_FILENAME Resulting script file may include others, where __FILE__ refers to the path to the current file ...
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What's the standard way to work with dates and times in Scala? Should I use Java types or there are

... immutable by default, have a much richer and nicer API, and can easily be converted to Java's Date and Calendar classes when necessary. This project provides a thin layer of convenience around the Joda Time libraries, making them more idiomatic to use within Scala. (copied from https://github.com...