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How do I set environment variables from Java?
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How to revert a merge commit that's already pushed to remote branch?
git revert <commit_hash> alone won't work. -m must be specified, and I'm pretty confused about it.
16 Answers
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Rails: Get Client IP address
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I found request.env['HTTP_X_FORWARDED_FOR'] very useful too in cases when request.remote_ip returns 127.0.0.1
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Selecting the first “n” items with jQuery
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Try the :lt selector: http://docs.jquery.com/Selectors/lt#index
$('a:lt(20)');
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Proper URL forming with Query String and Anchor Hashtag
... What's wrong with using query strings? they are part of the HTTP standard for a reason
– Julio Bastida
Feb 21 '18 at 23:24
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Is it possible to create a multi-line string variable in a Makefile
I want to create a makefile variable that is a multi-line string (e.g. the body of an email release announcement). something like
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Undo a git stash
...he most recent stash.
git stash apply stash@{n} to apply an older stash.
http://git-scm.com/book/en/Git-Tools-Stashing
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What is Weak Head Normal Form?
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A good explanation with examples is given at http://foldoc.org/Weak+Head+Normal+Form Head normal form simplifies even the bits of an expression inside of a function abstraction, while "weak" head normal form stops at function abstractions.
From the source, if you have...
WPF: Setting the Width (and Height) as a Percentage Value
...ts parent canvas:
<Window x:Class="WpfApplication1.Window1"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:local="clr-namespace:WpfApplication1"
Title="Window1" Height="300" Width="300">
<Wi...
What must I know to use GNU Screen properly? [closed]
I've just introduced a friend to GNU Screen and they're having a hard time getting used to it. That makes me think about the essential things he needs to know about the excellent Screen utility, the same things that you'd think worthwhile to teach someone, a beginner, from the ground up. What ar...