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Technically, why are processes in Erlang more efficient than OS threads?
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There are several contributing factors:
Erlang processes are not OS processes. They are implemented by the Erlang VM using a lightweight cooperative threading model (preemptive at the Erlang level, but under the control of a cooperatively sch...
How to download a file from server using SSH? [closed]
I need to download a file from server to my desktop. (UBUNTU 10.04) I don't have a web access to the server, just ssh.
4 An...
How to tell Xcode where my info.plist and .pch files are
...de is still looking for the old info.plist file. Where do I set the locations of the .plist and .pch files that it needs.
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Parse large JSON file in Nodejs
I have a file which stores many JavaScript objects in JSON form and I need to read the file, create each of the objects, and do something with them (insert them into a db in my case). The JavaScript objects can be represented a format:
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Why do you need ./ (dot-slash) before executable or script name to run it in bash?
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Because on Unix, usually, the current directory is not in $PATH.
When you type a command the shell looks up a list of directories, as specified by the PATH variable. The current directory is not in that list.
The reason for not hav...
Sockets: Discover port availability using Java
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This is the implementation coming from the Apache camel project:
/**
* Checks to see if a specific port is available.
*
* @param port the port to check for availability
*/
public static boolean available(int port) {
if (port < MIN_PORT_N...
What happens to a detached thread when main() exits?
Assume I'm starting a std::thread and then detach() it, so the thread continues executing even though the std::thread that once represented it, goes out of scope.
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What is the scope of variables in JavaScript?
...vascript? Do they have the same scope inside as opposed to outside a function? Or does it even matter? Also, where are the variables stored if they are defined globally?
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Bash script and /bin/bash^M: bad interpreter: No such file or directory [duplicate]
...this tutorial to learn bash scripts to automate a few tasks for me. I'm connecting to a server using putty.
11 Answers
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What's is the difference between include and extend in use case diagram?
... Machine (ATM). "Assess Fee" would extend Withdraw Cash and describe the conditional "extension point" that is instantiated when the ATM user doesn't bank at the ATM's owning institution. Notice that the basic "Withdraw Cash" use case stands on its own, without the extension.
Include is used to e...