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How to edit log message already committed in Subversion?

Is there a way to edit the log message of a certain revision in Subversion? I accidentally wrote the wrong filename in my commit message which could be confusing later. ...
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How to semantically add heading to a list

This has been bothering me for a while, and I'm wondering if there's any consensus on how to do this properly. When I'm using an HTML list, how do I semantically include a header for the list? ...
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How do I show/hide a UIBarButtonItem?

I created a toolbar in IB with several buttons. I would like to be able to hide/show one of the buttons depending on the state of the data in the main window. ...
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What should I use Android AccountManager for?

I've seen AccountManager in the Android SDK and that it is used for storing account information. Thus, I cannot find any general discussion of what it is intended for. Does anyone know of any helpful discussions of what the intention behind AccountManager is and what it buys you? Any opinions of wha...
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Setting an environment variable before a command in Bash is not working for the second command in a

In a given shell, normally I'd set a variable or variables and then run a command. Recently I learned about the concept of prepending a variable definition to a command: ...
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Epoch vs Iteration when training neural networks

What is the difference between epoch and iteration when training a multi-layer perceptron? 13 Answers ...
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How to insert a new line in Linux shell script? [duplicate]

I want to insert a new line between multiple echo statements. I have tried echo "hello\n" , but it is not working. It is printing \n . I want the desired output like this: ...
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How to extract numbers from a string in Python?

I would extract all the numbers contained in a string. Which is the better suited for the purpose, regular expressions or the isdigit() method? ...
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Has anyone actually implemented a Fibonacci-Heap efficiently?

Has anyone of you ever implemented a Fibonacci-Heap ? I did so a few years back, but it was several orders of magnitude slower than using array-based BinHeaps. ...
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Why does std::getline() skip input after a formatted extraction?

I have the following piece of code that prompts the user for their name and state: 3 Answers ...