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Create module variables in Ruby
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edited Jul 26 '19 at 17:08
answered Apr 16 '11 at 23:52
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bash assign default value
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209
Use a colon:
: ${A:=hello}
The colon is a null command that does nothing and ignores its arg...
How do you grep a file and get the next 5 lines
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Some awk version.
awk '/19:55/{c=5} c-->0'
awk '/19:55/{c=5} c && c--'
When pattern found, set c=5
If c is true, print and decrease number of c
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How to get VM arguments from inside of Java application?
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Askin Geeks
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answered Oct 7 '09 at 14:32
David SchulerDavid Schu...
Why is there an injected class name?
...to the current instantiation. See DR 176 for a change between C++98 and C++03 that clarified that.
The idea of the injected class name was present in C++98, but the terminology was new for C++03.
C++98 says:
A class-name is inserted into the scope in which it is declared immediately after the ...
Passing a list of kwargs?
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answered Sep 30 '09 at 6:11
PeterPeter
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builtins.TypeError: must be str, not bytes
...Lennart RegebroLennart Regebro
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102
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matplotlib colorbar for scatter
...import matplotlib.pyplot as plt
cm = plt.cm.get_cmap('RdYlBu')
xy = range(20)
z = xy
sc = plt.scatter(xy, xy, c=z, vmin=0, vmax=20, s=35, cmap=cm)
plt.colorbar(sc)
plt.show()
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Instantiating object of type parameter
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answered Nov 18 '08 at 20:24
ericksonerickson
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unresolved reference to object [INFORMATION_SCHEMA].[TABLES]
... SamSam
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