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How to install a specific version of a ruby gem?
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1182
Use the -v flag:
$ gem install fog -v 1.8
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Convert a matrix to a 1 dimensional array
I have a matrix (32X48).
10 Answers
10
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Regexp Java for password validation
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318
Try this:
^(?=.*[0-9])(?=.*[a-z])(?=.*[A-Z])(?=.*[@#$%^&+=])(?=\S+$).{8,}$
Explanation:
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Why is GHC so large/big?
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188
It's a bit silly really. Every library that comes with GHC is provided in no less than 4 flavo...
Listing only directories using ls in Bash?
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Gordon DavissonGordon Davisson
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Is it possible to cast a Stream in Java 8?
Is it possible to cast a stream in Java 8? Say I have a list of objects, I can do something like this to filter out all the additional objects:
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How do CUDA blocks/warps/threads map onto CUDA cores?
...r can issue an instruction.
See reference 2 for differences between a GTX480 and GTX560.
If you read the reference material (few minutes) I think you will find that your goal does not make sense. I'll try to respond to your points.
1'. If you launch kernel<<<8, 48>>> you will ge...
What is the difference between square brackets and parentheses in a regex?
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These regexes are equivalent (for matching purposes):
/^(7|8|9)\d{9}$/
/^[789]\d{9}$/
/^[7-9]\d{9}$/
The explanation:
(a|b|c) is a regex "OR" and means "a or b or c", although the presence of brackets, necessary for the OR, also captures the digit. To be strictly equivalent, you...
How to tell if a file is git tracked (by shell exit code)?
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8 Answers
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Suppress echo of command invocation in makefile?
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edited Apr 1 '12 at 18:45
answered Apr 1 '12 at 18:38
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