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How can I indent multiple lines in Xcode?
...ll. I come from Eclipse where I always did it that way. How's that done in Xcode? I hope not line by line ;)
20 Answers
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How to download an entire directory and subdirectories using wget?
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Great, so to simplify for the next reader: wget -r -l1 --no-parent http://www.stanford.edu/~boyd/cvxbook/cvxbook_additional_exercises/ was the answer for me. Thanks your answer.
– isomorphismes
Jun 21 '14 at 17:05
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sed whole word search and replace
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\b in regular expressions match word boundaries (i.e. the location between the first word character and non-word character):
$ echo "bar embarassment" | sed "s/\bbar\b/no bar/g"
no bar embarassment
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Set time part of DateTime in ruby
...Be aware that DateTime.now.midnight does not return 24:00:00 as you might expect, it returns 00:00:00 - the same value as beginning_of_day. See my answer as to why this could be important in some scenarios.
– rmcsharry
Apr 13 '16 at 11:06
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How to compare two colors for similarity/difference
...nd compute deltaE between your two Lab* values. It's not computationally expensive, it's just some nonlinear formulas and some multiplies and adds.
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Finding current executable's path without /proc/self/exe
It seems to me that Linux has it easy with /proc/self/exe. But I'd like to know if there is a convenient way to find the current application's directory in C/C++ with cross-platform interfaces. I've seen some projects mucking around with argv[0], but it doesn't seem entirely reliable.
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Quick-and-dirty way to ensure only one instance of a shell script is running at a time
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How to add a new row to an empty numpy array
...; arr
array([], shape=(0, 3), dtype=int64)
Then be sure to append along axis 0:
arr = np.append(arr, np.array([[1,2,3]]), axis=0)
arr = np.append(arr, np.array([[4,5,6]]), axis=0)
But, @jonrsharpe is right. In fact, if you're going to be appending in a loop, it would be much faster to append t...
Apache VirtualHost 403 Forbidden
...equire all denied
This basically says to deny access to all users. To fix this problem, either remove the denied directive (or much better) add the following directive to the directories you want to grant access to:
Require all granted
as in
<Directory "your directory here">
Order a...
Why is '+' not understood by Python sets?
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I'm not sure it does; "Because it is blue" does not explain "Why is the sky blue?"
– SingleNegationElimination
Oct 8 '11 at 17:20
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