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How to check if running as root in a bash script
I'm writing a script that requires root level permissions, and I want to make it so that if the script is not run as root, it simply echoes "Please run as root." and exits.
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What are the dangers when creating a thread with a stack size of 50x the default?
I'm currently working on a very performance critical program and one path I decided to explore that may help reduce resource consumption was increasing my worker threads' stack size so I can move most of the data ( float[] s) that I'll be accesing onto the stack (using stackalloc ).
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What is SuppressWarnings (“unchecked”) in Java?
...in when I'm mocking a generic interface, but there are other examples too. It's usually worth trying to work out a way of avoiding the warning rather than suppressing it (the Java Generics FAQ helps here) but sometimes even if it is possible, it bends the code out of shape so much that suppressing t...
What's the purpose of SQL keyword “AS”?
...re is no difference between both statements above. AS is just a more explicit way of mentioning the alias
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Differences between Ant and Maven [closed]
... someone tell me the differences between Ant and Maven? I have never used either. I understand that they are used to automate the building of Java projects, but I do not know where to start from.
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Difference between File.separator and slash in paths
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With the Java libraries for dealing with files, you can safely use / (slash, not backslash) on all platforms. The library code handles translating things into platform-specific paths internally.
You might want to use File.sep...
Original purpose of ? [closed]
... (unchanged) sent back to maintain a kind of a state.
Precisely. In fact, it's still being used for this purpose today because HTTP as we know it today is still, at least fundamentally, a stateless protocol.
This use case was actually first described in HTML 3.2 (I'm surprised HTML 2.0 didn't inclu...
Javascript foreach loop on associative array object
Why my for for-each loop is not iterating over my JavaScript associative array object?
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What is digest authentication?
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The main difference is that it doesn't require sending the username and password across the wire in plaintext. It is also immune to replay-attacks, as it uses a one-time number from the server.
The server gives the client a one-time use number (a nonce...
Getter and Setter?
...t a PHP developer, so I'm wondering if in PHP is more popular to use explicit getter/setters, in a pure OOP style, with private fields (the way I like):
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