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How can I get the current user's username in Bash?
I am writing a program in Bash that needs to get the user's username.
12 Answers
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static constructors in C++? I need to initialize private static objects
...want to have a class with a private static data member (a vector that contains all the characters a-z). In java or C#, I can just make a "static constructor" that will run before I make any instances of the class, and sets up the static data members of the class. It only gets run once (as the variab...
Convert UTC to local time in Rails 3
I'm having trouble converting a UTC Time or TimeWithZone to local time in Rails 3.
6 Answers
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Android - Back button in the title bar
In many apps (Calendar, Drive, Play Store) when you tap a button and enter a new activity, the icon in the title bar turns into a back button, but for the app I am making, it doesn't do that. How do I make that icon take you back to the previous screen?
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How can I read and parse CSV files in C++?
I need to load and use CSV file data in C++. At this point it can really just be a comma-delimited parser (ie don't worry about escaping new lines and commas). The main need is a line-by-line parser that will return a vector for the next line each time the method is called.
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_=> what does this underscore mean in Lambda expressions?
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It's more common in Haskell and other functional languages. I think that's where it comes from.
– Gabe Moothart
May 6 '10 at 4:34
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Any idea why I need to cast an integer literal to (int) here?
In the following example
8 Answers
8
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How do I abort/cancel TPL Tasks?
In a thread, I create some System.Threading.Task and start each task.
12 Answers
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Explicit vs implicit SQL joins
Is there any efficiency difference in an explicit vs implicit inner join?
For example:
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Delete duplicate records in SQL Server?
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You can do this with window functions. It will order the dupes by empId, and delete all but the first one.
delete x from (
select *, rn=row_number() over (partition by EmployeeName order by empId)
from Employee
) x
where rn > 1;
Run it ...