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Cannot download Docker images behind a proxy
I installed Docker on my Ubuntu 13.10 (Saucy Salamander) and when I type in my console:
25 Answers
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How do I install pip on macOS or OS X?
I spent most of the day yesterday searching for a clear answer for installing pip (package manager for Python). I can't find a good solution.
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How can I handle R CMD check “no visible binding for global variable” notes when my ggplot2 syntax i
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Just another warning. aes_string does not allow you to use functions to manipulate the x and y values. Say that you would like to log transform y in which case aes_string(x = 'x.values', y='log(y.values)') of course doesn't work. I use these kind of transformations a...
How can I efficiently download a large file using Go?
... Go that will store the content directly into a file instead of storing it all in memory before writing it to a file? Because the file is so big, storing it all in memory before writing it to a file is going to use up all the memory.
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Grab a segment of an array in Java without creating a new array on heap
...wer by @unique72 is correct. Imma let this edit sit for a bit and then I shall delete this answer.)
I don't know of a way to do this directly with arrays without additional heap allocation, but the other answers using a sub-list wrapper have additional allocation for the wrapper only – but not...
Where is the Java SDK folder in my computer? Ubuntu 12.04
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WAY-1 : Updated for the shortest and easy way
Below command will give you the path, But it will only work if java command is working in other words if java path is configured.
readlink -f $(which java)
Read more at Where can I find the Java SDK in Lin...
Including an anchor tag in an ASP.NET MVC Html.ActionLink
...a link that includes an anchor tag (that is, directing the user to a page, and a specific section of the page).
7 Answers
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Test if a variable is set in bash when using “set -o nounset”
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Nope, -, +, :+, and :- are all supported. The former detect whether the variable is set, and the latter detect whether it is set or empty. From man bash: "Omitting the colon results in a test only for a parameter that is unset."
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Unable to install gem - Failed to build gem native extension - cannot load such file — mkmf (LoadErr
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But I have 1.9.3 ruby only.
– Alexandre
Dec 7 '12 at 17:14
5
ruby 1.9.3 is an ...
What is a non-capturing group in regular expressions?
How are non-capturing groups, i.e. (?:) , used in regular expressions and what are they good for?
15 Answers
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