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How to find Unused Amazon EC2 Security groups

... | edited Jul 1 at 20:15 Dherik 11.2k1010 gold badges7373 silver badges114114 bronze badges answer...
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Overlaying histograms with ggplot2 in R

... Your current code: ggplot(histogram, aes(f0, fill = utt)) + geom_histogram(alpha = 0.2) is telling ggplot to construct one histogram using all the values in f0 and then color the bars of this single histogram according to the variable utt. What you want instead is...
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Emulating a do-while loop in Bash

... answered May 10 '13 at 19:59 jm666jm666 51k1414 gold badges8585 silver badges155155 bronze badges ...
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Can I use `pip` instead of `easy_install` for `python setup.py install` dependency resolution?

...ip install https://pypi.python.org/packages/source/r/requests/requests-2.3.0.tar.gz Install from local tarball wget https://pypi.python.org/packages/source/r/requests/requests-2.3.0.tar.gz pip install requests-2.3.0.tar.gz Install from local folder tar -zxvf requests-2.3.0.tar.gz cd requests-2...
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What's the difference between “groups” and “captures” in .NET regular expressions?

...ew value. Not .NET, which will keep this history and places it in Captures[0]. If we change your regex to look as follows: MatchCollection matches = Regex.Matches("{Q}{R}{S}", @"(\{[A-Z]\})+"); you will notice that the first Group will have one Captures (the first group always being the whole m...
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Sass negative variable value?

... Try it like this margin: 0 (-$pad) 20px (-$pad); share | improve this answer | follow | ...
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Is there any way to prevent input type=“number” getting negative values?

... Use the min attribute like this: <input type="number" min="0"> share | improve this answer | follow | ...
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how to find host name from IP with out login to the host

... Use nslookup nslookup 208.77.188.166 ... Non-authoritative answer: 166.188.77.208.in-addr.arpa name = www.example.com. share | improve this ...
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Understanding exactly when a data.table is a reference to (vs a copy of) another data.table

...le(a = c(1, 2), b = c(11, 12)) newDT <- DT .Internal(inspect(DT)) # @0000000003B7E2A0 19 VECSXP g0c7 [OBJ,NAM(2),ATT] (len=2, tl=100) # @00000000040C2288 14 REALSXP g0c2 [NAM(2)] (len=2, tl=0) 1,2 # @00000000040C2250 14 REALSXP g0c2 [NAM(2)] (len=2, tl=0) 11,12 # ATTRIB: # ..snip.. .Inte...
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How can I split and parse a string in Python?

I am trying to split this string in python: 2.7.0_bf4fda703454 3 Answers 3 ...