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How do I get the name of the active user via the command line in OS X?

...if you are ssh'ed into a machine and want to see if a user is logged on locally. If they are not, the command will return "root". – Tim Dearborn Jan 15 '16 at 1:17 add a comme...
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prevent refresh of page when button inside form clicked

I have an issue while using buttons inside form. I want that button to call function. It does, but with unwanted result that it refresh the page. ...
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Getting the thread ID from a thread

...ive thread. There are ways to make it work with managed threads, I'm sure, all you need to find is the thread handle and pass it to that function. GetCurrentThreadId returns the ID of the current thread. GetCurrentThreadId has been deprecated as of .NET 2.0: the recommended way is the Thread.Curr...
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Remote origin already exists on 'git push' to a new repository

...you if your origin has a url set, if it doesn't likely you did the init locally and are trying to push it remote, and made a misstep like me). Then follow RobinH's answer: git remote set-url origin git@github.com:username/projectname.git – Clarence Liu May 23 '...
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F# development and unit testing?

... process of writing code. I have been using TDD for years in C# now, and really appreciate to have unit tests to know where I am at. ...
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What is the simplest SQL Query to find the second largest value?

... What if there are multiple second highest... Then this will not give all the Tuples – Parth Satra Oct 16 '14 at 0:09 2 ...
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Can you issue pull requests from the command line on GitHub?

... Didn't know about Hub, it is available via homebrew: brew install hub This seems like the correct answer for mac users. – wfbarksdale Dec 3 '12 at 22:58 ...
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Selecting only first-level elements in jquery

...; li a") But you would need to set a class on the root ul if you specifically want to target the outermost ul: <ul class="rootlist"> ... Then it's: $("ul.rootlist > li a").... Another way of making sure you only have the root li elements: $("ul > li a").not("ul li ul a") It lo...
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Is there any way to prevent input type=“number” getting negative values?

...entered using the arrow buttons / spinner. However, the user can still manually enter in a negative number and have that field's value read as a negative number, thus bypassing the min attribute. – ecbrodie Jul 14 '15 at 15:49 ...
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How to detect the physical connected state of a network cable/connector?

...ugged in Again: eth0/carrier:1 eth0/operstate:up Side Trick: harvesting all properties at once the easy way: grep "" eth0/* This forms a nice list of key:value pairs. share | improve this ...