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How to run only one task in ansible playbook?
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You may also apply tags to roles:
roles:
- { role: webserver, port: 5000, tags: [ 'web', 'foo' ] }
And you may also tag basic include statements:
- include: foo.yml tags=web,foo
Both of these have the function of tagging every single task inside the include statement.
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Unittest setUp/tearDown for several tests
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edited Dec 5 '11 at 20:13
answered Dec 5 '11 at 19:56
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How to run cron once, daily at 10pm
...2 I guess. Try the following to run it every first minute of the hour 22:
0 22 * * * ....
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The way to check a HDFS directory's size?
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Pythonic way of checking if a condition holds for any element of a list
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any():
if any(t < 0 for t in x):
# do something
Also, if you're going to use "True in ...", make it a generator expression so it doesn't take O(n) memory:
if True in (t < 0 for t in x):
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Printing leading 0's in C?
I'm trying to find a good way to print leading 0's, such as 01001 for a zipcode. While the number would be stored as 1001, what is a good way to do it?
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Passing multiple error classes to ruby's rescue clause in a DRY fashion
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You can use an array with the splat operator *.
EXCEPTIONS = [FooException, BarException]
beg...
How to find controls in a repeater header or footer
...peater.
To find a control in the header:
lblControl = repeater1.Controls[0].Controls[0].FindControl("lblControl");
To find a control in the footer:
lblControl = repeater1.Controls[repeater1.Controls.Count - 1].Controls[0].FindControl("lblControl");
With extension methods
public static clas...
Is it possible to figure out the parameter type and return type of a lambda?
..._traits implementation based on Specializing a template on a lambda in C++0x which can give the parameter types. The trick, as described in the answer in that question, is to use the decltype of the lambda's operator().
template <typename T>
struct function_traits
: public function_trai...
Does .NET have a way to check if List a contains all items in List b?
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answered Oct 5 '09 at 15:06
Jon SkeetJon Skeet
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