Tutorial by Topics: s

Syntax for ARM templates is well documented: https://azure.microsoft.com/en-us/documentation/articles/resource-group-authoring-templates/

it should be mentioned that if the key value does not exist then this will raise KeyError, in those situations it maybe better to use merge or get which allows you to specify a default value if the key doesn't exist

Shows how a sqoop script could be used to import data from various datastores/databases.

db.collection.createIndex({ <string field> : <1|-1 order> [, <string field> : <1|-1 order>] }); Performance Impact: Note that indexes improve read performances, but can have bad impact on write performance, as inserting a document requires updating all indexes. ...

PowerShell introduces an object pipelining model, which allows you to send whole objects down through the pipeline to consuming commandlets or (at least) the output. In contrast to classical string-based pipelining, information in piped objects don't have to be on specific positions. Commandlets can...

The most trivial data-structure, after a singular value, is the tuple. (A, B, C) // a three-tuple (a tuple with three elements), whose first element has type A, second type B, and third type C (A, B) // a two-tuple, whose two elements have type A and B respectively (A,) // a one-tuple (note the ...

XML Parsing is the interpretation of XML documents in order to manipulate their content using sensible constructs, be they "nodes", "attributes", "documents", "namespaces", or events related to these constructs. Java has a native API for XML document handli...

When WPF application launched, it could take a while for a current language runtime (CLR) to initialize .NET Framework. As a result, first application window can appear some time after application was launched, depending of application complexity. Splash screen in WPF allows application to show eit...

bind -P show all configured shortcuts.

ParameterDetailsvalueThe value produced by the binding source.valuesThe values array, produced by the binding source.targetTypeThe type of the binding target property.parameterThe converter parameter to use.cultureThe culture to use in the converter. What IValueConverter and IMultiValueConvertert...

echo $0 ps -p $$ echo $SHELL export SHELL=/bin/bash exec /bin/bash cat /etc/shells