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Diff files present in two different directories
... you are only interested to see the files that differ, you may use:
diff -qr dir_one dir_two | sort
Option "q" will only show the files that differ but not the content that differ, and "sort" will arrange the output alphabetically.
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Changing user agent on urllib2.urlopen
...from everyone's favorite Dive Into Python.
The short story: You can use Request.add_header to do this.
You can also pass the headers as a dictionary when creating the Request itself, as the docs note:
headers should be a dictionary, and will be treated as if add_header() was called with each k...
/etc/apt/sources.list" E212: Can't open file for writing
...ory
or the file name is not valid.
Vim has a builtin help system. I just quoted what it says to :h E212.
You might want to edit the file as a superuser as sudo vim FILE. Or if you don't want to leave your existing vim session (and now have proper sudo rights), you can issue:
:w !sudo tee % > ...
Allow Google Chrome to use XMLHttpRequest to load a URL from a local file
When trying to do a HTTP request using XMLHttpRequest from a local file, it basically fails due to Access-Control-Allow-Origin violation.
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HttpClient not supporting PostAsJsonAsync method C#
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Why does referencing a standard system assembly require me to download open source stuff from random locations on the Internet in order to get it to function? Why does this even compile if it cannot resolve its dependencies? This irks me to no end!
– Ne...
sudo echo “something” >> /etc/privilegedFile doesn't work
This is a pretty simple question, at least it seems like it should be, about sudo permissions in Linux.
15 Answers
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Check if a string contains a number
Most of the questions I've found are biased on the fact they're looking for letters in their numbers, whereas I'm looking for numbers in what I'd like to be a numberless string.
I need to enter a string and check to see if it contains any numbers and if it does reject it.
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Prevent contenteditable adding on ENTER - Chrome
...pace: pre-wrap;
background: #EEE;
}
http://jsfiddle.net/ayiem999/HW43Q/
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Basic http file downloading and saving to disk in python?
I'm new to Python and I've been going through the Q&A on this site, for an answer to my question. However, I'm a beginner and I find it difficult to understand some of the solutions. I need a very basic solution.
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Using JQuery - preventing form from submitting
How do I prevent a form from submitting using jquery?
13 Answers
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