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How do you rename a Git tag?

Today I was looking through the logs for a project and realized that I fat fingered a tag name some time ago. Is there some way to rename the tag? Google hasn't turned up anything useful. ...
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How to get the current directory in a C program?

I'm making a C program where I need to get the directory that the program is started from. This program is written for UNIX computers. I've been looking at opendir() and telldir() , but telldir() returns a off_t (long int) , so it really doesn't help me. ...
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How to tell if a tag failed to load

I'm dynamically adding <script> tags to a page's <head> , and I'd like to be able to tell whether the loading failed in some way -- a 404, a script error in the loaded script, whatever. ...
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How do I create an array of strings in C?

I am trying to create an array of strings in C. If I use this code: 14 Answers 14 ...
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Creating a singleton in Python

This question is not for the discussion of whether or not the singleton design pattern is desirable, is an anti-pattern, or for any religious wars, but to discuss how this pattern is best implemented in Python in such a way that is most pythonic. In this instance I define 'most pythonic' to mean tha...
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How do I drop a foreign key in SQL Server?

I have created a foreign key (in SQL Server) by: 8 Answers 8 ...
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C++ blogs that you regularly follow? [closed]

What are all the C++ blogs that you follow? 51 Answers 51 ...
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What is the best way to measure execution time of a function? [duplicate]

Obviously I can do and DateTime.Now.After - DateTime.Now.Before but there must be something more sophisticated. 4 Answ...
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What does cmd /C mean? [closed]

I can understand cmd but not cmd /c . I was trying to invoke a java program from the current for which I use Runtime.getRuntime().exec("cmd /C java helloworld"); There arises my doubt. ...
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IndexOf function in T-SQL

Given an email address column, I need to find the position of the @ sign for substringing. 4 Answers ...