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How to use double or single brackets, parentheses, curly braces
I am confused by the usage of brackets, parentheses, curly braces in Bash, as well as the difference between their double or single forms. Is there a clear explanation?
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Check for current Node Version
I need to programmatically access the current node version running in a library I am writing. Can't seem to find this in the docs.
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How can I get the concatenation of two lists in Python without modifying either one? [duplicate]
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phoenix
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answered Dec 3 '10 at 9:17
NPENPE
41...
How to list the size of each file and directory and sort by descending size in Bash?
I found that there is no easy to get way the size of a directory in Bash?
11 Answers
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Overloading Macro on Number of Arguments
...e these macros:
FOO(World, !) # expands to FOO2(World, !)
FOO(foo,bar,baz) # expands to FOO3(foo,bar,baz)
If you want a fourth one:
#define GET_MACRO(_1,_2,_3,_4,NAME,...) NAME
#define FOO(...) GET_MACRO(__VA_ARGS__, FOO4, FOO3, FOO2)(__VA_ARGS__)
FOO(a,b,c,d) # expeands t...
Regular expression to extract text between square brackets
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You can use the following regex globally:
\[(.*?)\]
Explanation:
\[ : [ is a meta char and needs to be escaped if you want to match it literally.
(.*?) : match everything in a non-greedy way and capture it.
\] : ] is a meta char and needs to be escaped if...
Splitting String with delimiter
...2: 2, so that I can then use each value separately. I have tried split() but with no success. Is there a specific way Grails handles this, or a better way of doing it?
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Select first row in each GROUP BY group?
...I'd like to select the first row of each set of rows grouped with a GROUP BY .
17 Answers
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All possible array initialization syntaxes
What are all the array initialization syntaxes that are possible with C#?
16 Answers
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Divide a number by 3 without using *, /, +, -, % operators
How would you divide a number by 3 without using * , / , + , - , % , operators?
48 Answers
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