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How can I delete a git alias?
...set alias.trololo
warning: alias.trololo has multiple values
Use --unset-all
git config --global --unset-all
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List of Java processes
How can I list all Java processes in bash?
I need an command line. I know there is command ps but I don't know what parameters I need to use.
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Unix - copy contents of one directory to another [closed]
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You just lost all your hidden files. Don't do this. Do "cp -rT src dest" on Linux, or "cp -R src/ dest" on BSD.
– xpusostomos
Aug 5 at 10:57
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Avoiding recursion when reading/writing a port synchronously?
All port operations in Rebol 3 are asynchronous. The only way I can find to do synchronous communication is calling wait .
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How To Get IPython Notebook To Run Python 3?
... 3 instead of 2 on my MAC 10.9, I did the following steps
$ sudo pip3 install ipython[all]
Then
$ ipython3 notebook
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What is a Y-combinator? [closed]
...m the “functional” side of things. Most programmers don't know much at all about combinators, if they've even heard about them.
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How to print to console when using Qt
...is good enough to print to stderr, you can use the following streams originally intended for debugging:
#include<QDebug>
//qInfo is qt5.5+ only.
qInfo() << "C++ Style Info Message";
qInfo( "C Style Info Message" );
qDebug() << "C++ Style Debug Message";
qDebug( "C Style Debug Me...
Why doesn't Java allow overriding of static methods?
...One was a concern with performance: there had been a lot of criticism of Smalltalk about it being too slow (garbage collection and polymorphic calls being part of that) and Java's creators were determined to avoid that. Another was the decision that the target audience for Java was C++ developers. M...
When does invoking a member function on a null instance result in undefined behavior?
...) and (b) result in undefined behavior. It's always undefined behavior to call a member function through a null pointer. If the function is static, it's technically undefined as well, but there's some dispute.
The first thing to understand is why it's undefined behavior to dereference a null poin...
How do I list all the columns in a table?
For the various popular database systems, how do you list all the columns in a table?
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