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how to use sed, awk, or gawk to print only what is matched?
I see lots of examples and man pages on how to do things like search-and-replace using sed, awk, or gawk.
11 Answers
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How can I determine the current line number in JavaScript?
...nism for determining the line number of the currently executing statement (and if so, what is it)?
8 Answers
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What's the difference between & and && in MATLAB?
What is the difference between the & and && logical operators in MATLAB?
7 Answers
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What are the true benefits of ExpandoObject?
The ExpandoObject class being added to .NET 4 allows you to arbitrarily set properties onto an object at runtime.
10 Answ...
Take a screenshot of a webpage with JavaScript?
Is it possible to to take a screenshot of a webpage with JavaScript and then submit that back to the server?
15 Answers
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Why does this iterative list-growing code give IndexError: list assignment index out of range?
... a list with its elements set to a null value (None in the example below), and later, overwrite the values in specific positions:
i = [1, 2, 3, 5, 8, 13]
j = [None] * len(i)
#j == [None, None, None, None, None, None]
k = 0
for l in i:
j[k] = l
k += 1
The thing to realise is that a list obj...
What is a mutex?
...chicken you cannot speak. You can only indicate that you want the chicken and wait until you get it before you speak. Once you have finished speaking, you can hand the chicken back to the moderator who will hand it to the next person to speak. This ensures that people do not speak over each other...
What does 'foo' really mean?
...very generally as a sample name for absolutely anything, esp.
programs and files (esp. scratch files).
First on the standard list of metasyntactic variables used in
syntax examples (bar, baz, qux, quux, corge, grault, garply,
waldo, fred, plugh, xyzzy, thud). [JARGON]
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How to make the window full screen with Javascript (stretching all over the screen)
...owser go fullscreen using JavaScript, in a way that works with IE, Firefox and Opera?
19 Answers
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Get the data received in a Flask request
...ing request data as string in case it came with a mimetype Flask does not handle.
request.args: the key/value pairs in the URL query string
request.form: the key/value pairs in the body, from a HTML post form, or JavaScript request that isn't JSON encoded
request.files: the files in the body, whi...