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Unix command to find lines common in two files
...in the array (i.e. file1). The lines that are found will be printed in the order in which they appear in file2.
Note that the comparison in arr uses the entire line from file2 as index to the array, so it will only report exact matches on entire lines.
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Haskell Type vs Data Constructor
... data or newtype (e.g. data Bright = Bright Color), or you can use type in order to define a synonym (e.g. type Bright = Color).
– Landei
Dec 16 '14 at 12:59
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How to add MVC5 to Visual Studio 2013?
...erent ASP.Net features.
You must select .NET Framework 4.5 (or higher) in order to see the ASP.NET Web Application template (For ASP.NET One).
So just select Visual C# > Web > ASP.NET Web Application, then select the MVC checkbox in the next step.
Note: Make sure not to select the C# > We...
How can I do SELECT UNIQUE with LINQ?
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The Distinct() is going to mess up the ordering, so you'll have to the sorting after that.
var uniqueColors =
(from dbo in database.MainTable
where dbo.Property == true
select dbo.Color.Name).Distinct().OrderBy(n...
Why maven? What are the benefits? [closed]
...checking that they don't overlap, checking that they are not incompatible, etc. Welcome to hell.
On the other hand, Maven supports dependency management and will retrieve them transitively for me and gives me the tooling I need to manage the complexity inherent to dependency management: I can analy...
How to check for file existence [duplicate]
...rry chris you are wrong true and false => false ` >> File.file?('/etc/passwd') => true >> File.file?('/etc/') => false >> File.exists?('/etc/') => true >> File.exists?('/etc/passwd') => true >> File.file?('/etc/passwd') and File.exists?('/etc/passwd')`
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如何让Finder显示出根目录的/usr和/etc等隐藏文件夹 - 更多技术 - 清泛网 -...
如何让Finder显示出根目录的/usr和/etc等隐藏文件夹两种方法都可以，好坏自己体会：方法一：终端输入：defaults write com.apple.finder AppleShowAllFiles TRUE2 killall Finder同理将...两种方法都可以，好坏自己体会：
方法一：
终端输入：
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SQL to determine minimum sequential days of access?
...NUMBER() OVER (PARTITION BY UserID
ORDER BY CreationDate)
- DATEDIFF(day,'19000101',CreationDate) AS TheOffset,
CreationDate,
UserID
FROM tablename)
SELECT MIN(CreationDate),
MAX(CreationDate),
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Convert string to nullable type (int, double, etc…)
...ately, much of the data is in strings, where it should be int's or double, etc...
16 Answers
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What Makes a Method Thread-safe? What are the rules?
...e a complete knowledge of the threading behaviour of the entire program in order to ensure its safety.
Again, look at my example: every method is trivial. It is the way that the methods interact with each other at a "global" level that makes the program deadlock. You can't look at every method and...