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Check if a string matches a regex in Bash script
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330
You can use the test construct, [[ ]], along with the regular expression match operator, =~, to ...
What's the “big idea” behind compojure routes?
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Compojure explained (to some degree)
NB. I am working with Compojure 0.4.1 (here's the 0.4.1 release commit on GitHub).
Why?
At the very top of compojure/core.clj, there's this helpful summary of Compojure's purpose:
A concise syntax for generating Ring handlers.
On a superficial level...
Finding all possible combinations of numbers to reach a given sum
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250
This problem can be solved with a recursive combinations of all possible sums filtering out thos...
Is there a difference between x++ and ++x in java?
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answered Jul 7 '09 at 21:09
Emil HEmil H
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Is there a C# type for representing an integer Range?
...need to store an integer range. Is there an existing type for that in C# 4.0?
10 Answers
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Select rows which are not present in other table
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+500
There are basically 4 techniques for this task, all of them standard SQL.
NOT EXISTS
Often fastest in Postgres.
SELECT ip
FROM ...
Angularjs if-then-else construction in expression
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Rafael Almeida
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answered May 16 '13 at 11:16
Andre GoncalvesAndr...
Running a cron job on Linux every six hours
...got a *, and you've too many fields. It's the hour you need to care about
0 */6 * * * /path/to/mycommand
This means every sixth hour starting from 0, i.e. at hour 0, 6, 12 and 18 which you could write as
0 0,6,12,18 * * * /path/to/mycommand
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SQLite Reset Primary Key Field
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answered Oct 21 '09 at 16:03
Nick DandoulakisNick Dandoulakis
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