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How can I iterate over files in a given directory?

I need to iterate through all .asm files inside a given directory and do some actions on them. 9 Answers ...
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Opposite of %in%: exclude rows with values specified in a vector

A categorical variable V1 in a data frame D1 can have values represented by the letters from A to Z. I want to create a subset D2, which excludes some values, say, B, N and T. Basically, I want a command which is the opposite of %in% ...
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Why would I want stage before committing in Git?

I'm new to version control and I understand that "committing" is essentially creating a backup while updating the new 'current' version of what you're working on. ...
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How to define custom configuration variables in rails

I was wondering how to add custom configuration variables to a rails application and how to access them in the controller, for e.g I wanna be able to define an upload_directory in the configuration files say development.rb and be able to access it in one of my controllers. ...
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SQL WHERE.. IN clause multiple columns

I need to implement the following query in SQL Server: 13 Answers 13 ...
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(-2147483648> 0) returns true in C++?

-2147483648 is the smallest integer for integer type with 32 bits, but it seems that it will overflow in the if(...) sentence: ...
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Rename multiple files in a directory in Python [duplicate]

I'm trying to rename some files in a directory using Python. 15 Answers 15 ...
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In Python, how do I indicate I'm overriding a method?

In Java, for example, the @Override annotation not only provides compile-time checking of an override but makes for excellent self-documenting code. ...
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Is there a reason for C#'s reuse of the variable in a foreach?

When using lambda expressions or anonymous methods in C#, we have to be wary of the access to modified closure pitfall. For example: ...
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What do “branch”, “tag” and “trunk” mean in Subversion repositories?

...d Subversion (and I guess general repository) discussions. I have been using SVN for my projects for the last few years, but I've never grasped the complete concept of these directories. ...