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How to define hash tables in Bash?
What is the equivalent of Python dictionaries but in Bash (should work across OS X and Linux).
15 Answers
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Free space in a CMD shell
Is there a way to get the amount of free diskspace of a disk or a folder in a CMD
without having to install some thirdparty applications?
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Cython: “fatal error: numpy/arrayobject.h: No such file or directory”
...doing the cygwinccompiler.py hack explained here ), but get a fatal error: numpy/arrayobject.h: No such file or directory...compilation terminated error. Can anyone tell me if it's a problem with my code, or some esoteric subtlety with Cython?
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Is there a way to automate the android sdk installation?
...ine tool that allows you to view, install, update, and uninstall packages for the Android SDK.
The sdkmanager tool is provided in the Android SDK Tools package (25.2.3 and higher) and is located in android_sdk/tools/bin/.
sdkmanager [--uninstall] [<common args>] [--package_file <file>]...
Undefined, unspecified and implementation-defined behavior
What is undefined behavior in C and C++? What about unspecified behavior and implementation-defined behavior? What is the difference between them?
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Is there a vim command to relocate a tab?
How can I change the position / order of my current tab in Vim ? For example, if I want to reposition my current tab to be the first tab?
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How can I quantify difference between two images?
... and calculate an element-wise (pixel-by-pixel) difference. Calculate the norm of the difference.
Option 2: Load both images. Calculate some feature vector for each of them (like a histogram). Calculate distance between feature vectors rather than images.
However, there are some decisions to make ...
When is a language considered a scripting language? [closed]
... say "when it gets interpreted instead of compiled". That would make PHP (for example) a scripting language. Is that the only criterion? Or are there other criteria?
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Emacs: print key binding for a command or list all key bindings
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C-h f (or M-x describe-function) will show you the bindings for a command.
You are correct, C-h b (or M-x describe-bindings) will show you all bindings. C-h m (M-x describe-mode) is also handy to list bindings by mode.
You might a...
Best way of invoking getter by reflection
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I think this should point you towards the right direction:
import java.beans.*
for (PropertyDescriptor pd : Introspector.getBeanInfo(Foo.class).getPropertyDescriptors()) {
if (pd.getReadMethod() != null && !"class".equals(pd.getName()))
System.out.println(pd.getReadMethod...