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How to use sed to remove the last n lines of a file
I want to remove some n lines from the end of a file. Can this be done using sed?
22 Answers
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How to get image height and width using java?
Is there any other way besides using ImageIO.read to get image height and width?
13 Answers
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Why does C++ require a user-provided default constructor to default-construct a const object?
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This was considered a defect (against all versions of the standard) and it was resolved by Core Working Group (CWG) Defect 253. The new wording for the standard states in http://eel.is/c++draft/dcl.init#7
A class type T is const-default-constructible if
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Why doesn't this code simply print letters A to Z?
This snippet gives the following output (newlines are replaced by spaces):
13 Answers
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Struct inheritance in C++
Can a struct be inherited in C++?
6 Answers
6
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SQL Server ':setvar' Error
I am trying to create some script variables in T-SQL as follows:
4 Answers
4
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git checkout tag, git pull fails in branch
...-set-upstream master has been deprecated, you should use --set-upstream-to instead:
git branch --set-upstream-to=origin/master master
As it prompted, you can just run:
git branch --set-upstream master origin/master
After that, you can simply run git pull to update your code.
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How to check if a file exists in Go?
Go's standard library does not have a function solely intended to check if a file exists or not (like Python's os.path.exists ). What is the idiomatic way to do it?
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Python locale error: unsupported locale setting
Why do I get the following error when doing this in python:
20 Answers
20
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What is the 'CLSCompliant' attribute in .NET?
...ese are the basic rules:
Unsigned types should not be part of the public interface of the class. What this means is public fields should not have unsigned types like uint or ulong, public methods should not return unsigned types, parameters passed to public function should not have unsigned types....