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How to 'grep' a continuous stream?
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I use the tail -f <file> | grep <pattern> all the time.
It will wait till grep flushes, not till it finishes (I'm using Ubuntu).
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Reasons for using the set.seed function
...he set.seed function in R, before starting the program. I know it's basically used for the random number generation. Is there any specific need to set this?
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The transaction log for the database is full
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As I recall now, the additional file mostly enabled us to access another, bigger drive.
– Mike Henderson
Jul 16 '13 at 11:49
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How do I detect if I am in release or debug mode?
... this value is not 100% reliable from Eclipse-based builds, though I personally have not encountered a problem, so I cannot say how much of an issue it really is.
If you are using Android Studio, or if you are using Gradle from the command line, you can add your own stuff to BuildConfig or otherwis...
Python - doctest vs. unittest [closed]
...doctest for cases where the test is giving an example of usage that is actually useful as documentation. Generally I don't make these tests comprehensive, aiming solely for informative. I'm effectively using doctest in reverse: not to test my code is correct based on my doctest, but to check that...
CSS strikethrough different color from text?
The HTML elements del , strike , or s may all be used for a text strike-through effect. Examples:
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How to use count and group by at the same select statement
I have an sql select query that has a group by.
I want to count all the records after the group by statement.
Is there a way for this directly from sql?
For example, having a table with users I want to select the different towns and the total number of users
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DbEntityValidationException - How can I easily tell what caused the error?
I have a project that uses Entity Framework. While calling SaveChanges on my DbContext , I get the following exception:
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Is there a way to take a screenshot using Java and save it to some sort of image?
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Believe it or not, you can actually use java.awt.Robot to "create an image containing pixels read from the screen." You can then write that image to a file on disk.
I just tried it, and the whole thing ends up like:
Rectangle screenRect = new Rectangle(T...
How to prevent blank xmlns attributes in output from .NET's XmlDocument?
...:name-space-1.0"));
Console.WriteLine(xml.OuterXml);
Thanks everyone to all your answers which led me in the right direction!
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