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How do I get out of a screen without typing 'exit'?
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Ctrl-a d or Ctrl-a Ctrl-d. See the screen manual # Detach.
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socket.error: [Errno 48] Address already in use
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You already have a process bound to the default port (8000). If you already ran the same module before, it is most likely that process still bound to the port. Try and locate the other process first:
$ ps -fA | grep python
501 81651 12648 0 9:53PM ttys000 0:00.16 p...
How to run an application as “run as administrator” from the command prompt? [closed]
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Try this:
runas.exe /savecred /user:administrator "%sysdrive%\testScripts\testscript1.ps1"
It saves the password the first time and never asks again. Maybe when you change the administrator password you will be prompted again.
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Use JAXB to create Object from XML String
...ss) method. E.g. is there a way to convert the Reader to a javax.xml.transform.Source ?
– bvdb
Jul 13 '16 at 10:29
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How to check if a URL is valid
...module distributed with Ruby:
require 'uri'
if url =~ URI::regexp
# Correct URL
end
Like Alexander Günther said in the comments, it checks if a string contains a URL.
To check if the string is a URL, use:
url =~ /\A#{URI::regexp}\z/
If you only want to check for web URLs (http or https)...
How can I display just a portion of an image in HTML/CSS?
...t's 250x250px in HTML. How can I do that. Also, is there a way to do this for css:url() references?
4 Answers
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How to delete/unset the properties of a javascript object? [duplicate]
I'm looking for a way to remove/unset the properties of a JS object so they'll no longer come up if I loop through the object doing for (var i in myObject) . How can this be done?
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iOS (iPhone, iPad, iPodTouch) view real-time console log terminal
...cumented by Apple in Technical Q&A QA1747 Debugging Deployed iOS Apps for Xcode 6 is:
Choose Window -> Devices from the Xcode menu.
Choose the device in the left column.
Click the up-triangle at the bottom left of the right hand panel to show the device console.
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How to check whether a string is a valid HTTP URL?
There are the Uri.IsWellFormedUriString and Uri.TryCreate methods, but they seem to return true for file paths etc.
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What is ModelState.IsValid valid for in ASP.NET MVC in NerdDinner?
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ModelState.IsValid tells you if any model errors have been added to ModelState.
The default model binder will add some errors for basic type conversion issues (for example, passing a non-number for something which is an "int"). You can populate ModelState more fully ba...