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How does a Linux/Unix Bash script know its own PID?
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240
The variable '$$' contains the PID.
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How to sort an array of hashes in ruby
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374
Simples:
array_of_hashes.sort_by { |hsh| hsh[:zip] }
Note:
When using sort_by you need to as...
What is the purpose of the -nodes argument in openssl?
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124
The option -nodes is not the English word "nodes", but rather is "no DES". When given as an arg...
Sublime Text 2 - Link with Editor / Show file in sidebar
...well!
– Sir.Nathan Stassen
Apr 11 '14 at 15:58
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Python: Using .format() on a Unicode-escaped string
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244
Just make the second string also a unicode string
>>> s = u'\u2265'
>>> prin...
Merge Images Side by Side(Horizontally)
...0x30, 600x30, 600x30, 810x30. Their names are: 0.png, 1.png, 2.png, 3.png, 4.png, respectively.
5 Answers
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Ruby on Rails. How do I use the Active Record .build method in a :belongs to relationship?
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148
Where it is documented:
From the API documentation under the has_many association in "Module A...
Purpose of asterisk before a CSS property
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answered Nov 6 '09 at 21:44
Waleed AmjadWaleed Amjad
6,43233 gold badges3030 silver badges3333 bronze badges
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How do I set a column value to NULL in SQL Server Management Studio?
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answered Jan 14 '09 at 21:05
Jeff MartinJeff Martin
9,50566 gold badges4343 silver badges6767 bronze badges
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