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choosing between 0 and BASHSOURCE

How does one choose between 0 and BASHSOURCE0 This description from GNU didnt help me much BASHSOURCE An array variable whose members are the source filenames

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Command line to remove an environment variable from the OS-level configuration

Windows has the setx command Description Creates or modifies environment variables in the user or system environment So you can set a variable like this setx

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Constructor of an abstract class in C

Why is it possible to write constructor for an abstract class in C As far as I know we cant instantiate an abstract class so what is it for You cant

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Convert Float to Int in Swift

I want to convert a Float to an Int in Swift Basic casting like this does not work because these types are not primitives unlike floats and ints in ObjectiveC

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Could not get any response response when using postman with subdomain

I am using postman to test an API I have all is good when the request does not contain subdomain however when I add a subdomain to URL I am getting this

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Delete all the queues from RabbitMQ

I installed rabbitmqadmin and was able to list all the exchanges and queues How can I use rabbitmqadmin or rabbitmqctl to delete all the

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Determine the data types of a data frames columns

Im using R and have loaded data into a dataframe using readcsv How do I determine the data type of each column in the data

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Difference between JVM and HotSpot

What exactly is HotSpot and how does it relate to JVM and OpenJDK Is it a library What exactly does it do Also what is the difference between OpenJDK and

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Difference between natural join and inner join

What is the difference between a natural join and an inner

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