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Ruby, Difference between exec, system and %x() or Backticks
...is method. For example:
>> system("date")
Wed Sep 4 22:03:44 CEST 2013
=> true
The invoked program will use the current STDIN, STDOUT and STDERR objects of your Ruby program. In fact, the actual return value is either true, false or nil. In the example the date was printed through the IO...
How can Bash execute a command in a different directory context?
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Todd A. JacobsTodd A. Jacobs
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How to check if a variable is a dictionary in Python?
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answered Jun 17 at 13:57
Aaron Hall♦Aaron Hall
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Get margin of a View
...95 4.66231C43.6264 4.66231 43.1481 5.28821 43.1481 6.59048V11.9512C43.1481 13.2535 43.6264 13.8962 44.6595 13.8962C45.6924 13.8962 46.1709 13.2535 46.1709 11.9512V9.17788Z\"/\u003e\u003cpath d=\"M32.492 10.1419C32.492 12.6954 34.1182 14.0484 37.0451 14.0484C39.9723 14.0484 41.5985 12.6954 41.5985 10...
When do I use a dot, arrow, or double colon to refer to members of a class in C++?
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answered Feb 13 '11 at 14:11
sbisbi
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How to do a LIKE query in Arel and Rails?
...return matches
– travis-146
Jul 22 '13 at 15:22
5
I tried to sql inject using params directly, Us...
How to template If-Else structures in data-bound views?
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edited Feb 11 '13 at 0:24
Dan F
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answe...
Predicate in Java
...explanation
– srikanth
Jun 2 '10 at 13:53
@polygenelubricants, Why invent Predicate<Integer> when we already hav...
How do I execute inserts and updates in an Alembic upgrade script?
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cmccmc
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What is the difference between double-ampersand (&&) and semicolon (;) in Linux Bash?
...first command to finish?
– rfii
Aug 13 at 23:55
@rfii Yes, but it executes the second command without regard for wheth...