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How does a Linux/Unix Bash script know its own PID?
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Facebook Post Link Image
...is just a link tag:
<link rel="image_src" href="http://stackoverflow.com/images/logo.gif" />
But there are some other things you can add to your site to make it more Social media friendly:
Open Graph Tags
Open Graph tags are tags that you add to the <head> of your website to desc...
Is volatile expensive?
After reading The JSR-133 Cookbook for Compiler Writers about the implementation of volatile, especially section "Interactions with Atomic Instructions" I assume that reading a volatile variable without updating it needs a LoadLoad or a LoadStore barrier. Further down the page I see that LoadLoad ...
Understanding Canvas and Surface concepts
...e some definitions:
A Surface is an object holding pixels that are being composited to the screen. Every window you see on the screen (a dialog, your full-screen activity, the status bar) has its own surface that it draws in to, and Surface Flinger renders these to the final display in their corr...
Are there other whitespace codes like   for half-spaces, em-spaces, en-spaces etc useful in HTML
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How to return raw string with ApiController?
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Error: Could not create the Java Virtual Machine Mac OSX Mavericks
...led the latest Java SDK 7-67 from Oracle on the Mac 10.9.4. I then ran the command java -v in Terminal and I get this message:
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How to undo a git merge with conflicts
... state it was in before the merge. That means that it should restore any uncommitted changes from before the merge, although it cannot always do so reliably. Generally you shouldn't merge with uncommitted changes anyway.
Prior to version 1.7.4:
git reset --merge
This is older syntax but does the...
Why isn't there a Guid.IsNullOrEmpty() method
...)... or create your own extension method if you really want. Presumably it comes up rarely enough that it's not worth it for most people.
– Jon Skeet
Mar 23 '12 at 10:42
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