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Attach to a processes output for viewing
...and detached, but are nominally meant only to be used by the same user, so if you want to share them between users, it's a big pain in the ass.
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How can Bash execute a command in a different directory context?
I have a common command that gets called from within very specific directories. There is only one executable sitting in /bin for this program, and the current working directory is very important for running it correctly. The script affects the files that live inside the directory it is run within.
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Right query to get the current number of connections in a PostgreSQL DB
...fewer rows to count. But you are not likely going to be able to measure a difference.
Both queries are based on exactly the same data, so they will be equally accurate.
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Find all tables containing column with specified name - MS SQL Server
...e INFORMATION_SCHEMA., sys.columns, sys.tables is Microsoft Sql Server specific.
– Tomasito
Mar 18 '14 at 21:36
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grep, but only certain file extensions
... i'd suggest grouping those -name arguments. strange things can happen if you don't. find . \( -name '*.h' -o -name '*.cpp' \) -exec grep "CP_Image" {} \; -print
– nullrevolution
Sep 20 '12 at 21:13
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Microsoft Roslyn vs. CodeDom
...designers (a la WinForms). Because CodeDom was an attempt at providing a unified model that can generate code in C#, VB, and other languages, it lacks high fidelity with any of the languages that it supports (that's why you can't create a switch statement with CodeDom). CSharpCodeProvider.CompileAss...
How to open a file for both reading and writing?
...ovided number of bytes, i.e. removes all of the file content after the specified number of bytes. Imagine that your file has the string Hello, world and you write Bye. If you don't truncate() the content at the end will be Byelo, world, since you never deleted the text that existed in the file. trun...
Why Collections.sort uses merge sort instead of quicksort?
...ly from Josh Bloch §:
I did write these methods, so I suppose I'm qualified to answer. It is
true that there is no single best sorting algorithm. QuickSort has
two major deficiencies when compared to mergesort:
It's not stable (as parsifal noted).
It doesn't guarantee n log n per...
scp with port number specified
...s an explanation of why uppercase P was chosen for scp:
-P port Specifies the port to connect to on the remote host. Note that this option is written with a capital 'P', because -p is already
reserved for preserving the times and modes of the file in rcp(1).
-p Pres...
Where to place private methods in Ruby?
... end
def zmethod
end
private :xmethod, :zmethod
end
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