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Can a shell script set environment variables of the calling shell? [duplicate]

...ny changes you've made to its environment are lost. Sourcing a script file is the most commonly used method for configuring a shell environment, you may just want to bite the bullet and maintain one for each of the two flavors of shell. ...
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Placing Unicode character in CSS content value [duplicate]

...t: "\2193"; } The general format for a Unicode character inside a string is \000000 to \FFFFFF – a backslash followed by six hexadecimal digits. You can leave out leading 0 digits when the Unicode character is the last character in the string or when you add a space after the Unicode character. ...
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Set environment variables on Mac OS X Lion

When someone says "edit your .plist file" or "your .profile" or ".bash_profile" etc, this just confuses me. I have no idea where these files are, how to create them if I have to do that, etc, and also why there seem to be so many different ones (why? Do they do different things?) ...
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Can Visual Studio 2012 be installed side-by-side w/ Visual Studio 2010?

Will Visual Studio 2012 interfere/break .NET 4 and/or Visual Studio 2010 if installed side-by-side on the same instance of Windows? ...
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How to determine the longest increasing subsequence using dynamic programming?

... OK, I will describe first the simplest solution which is O(N^2), where N is the size of the collection. There also exists a O(N log N) solution, which I will describe also. Look here for it at the section Efficient algorithms. I will assume the indices of the array are from 0 t...
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Scala actors: receive vs react

... First, each actor waiting on receive is occupying a thread. If it never receives anything, that thread will never do anything. An actor on react does not occupy any thread until it receives something. Once it receives something, a thread gets allocated to it, an...
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Why do we need tuples in Python (or any immutable data type)?

... immutable objects can allow substantial optimization; this is presumably why strings are also immutable in Java, developed quite separately but about the same time as Python, and just about everything is immutable in truly-functional languages. in Python in particular, only immuta...
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Why is this jQuery click function not working?

...cumentation states: "A page can't be manipulated safely until the document is "ready." jQuery detects this state of readiness for you. Code included inside $( document ).ready() will only run once the page Document Object Model (DOM) is ready for JavaScript code to execute" ...
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Moment js date time comparison

...two date values, and I want to achieve a particular function when one date is greater than the other. I read most of their docs, but didn't find the function to achieve this. I know it will be there. ...
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Understanding the map function

Apply function to every item of iterable and return a list of the results. If additional iterable arguments are passed, function must take that many arguments and is applied to the items from all iterables in parallel. ...