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Force add despite the .gitignore file
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See man git-add:
-f, --force
Allow adding otherwise ignored files.
So run this
git add --force my/ignore/file.foo
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How to find the length of a string in R
How to find the length of a string (number of characters in a string) without splitting it in R? I know how to find the length of a list but not of a string.
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“Width equals height” constraint in Interface Builder
I can't find a way to create a 'square' constraint, meaning 'width equals height' in Interface Builder. I guess it's possible to add such constraint programmatically. Is there something I can do in IB? Maybe I just don't see it? It seems trivial, yet I can't find it.
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Excluding directories in os.walk
I'm writing a script that descends into a directory tree (using os.walk()) and then visits each file matching a certain file extension. However, since some of the directory trees that my tool will be used on also contain sub directories that in turn contain a LOT of useless (for the purpose of thi...
Difference between make and build in Android Studio
The Android Studio Build menu has options including
3 Answers
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How to change owner of PostgreSql database?
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ALTER DATABASE name OWNER TO new_owner;
See the Postgresql manual's entry on this for more details.
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Running a cron job at 2:30 AM everyday
How to configure a cron job to run every night at 2:30? I know how to make it run at 2, but not 2:30.
6 Answers
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MFC的多国语言界面的实现 - C/C++ - 清泛网 - 专注C/C++及内核技术
MFC的多国语言界面的实现目前很多软件都是要出口到多个国家，因此，为软件提供多国语言支持就成为了一个基本条件。为软件提供多国语言的支持的具体实现方法有很多，...目前很多软件都是要出口到多个国家，因此，为软件...
Subset of rows containing NA (missing) values in a chosen column of a data frame
We have a data frame from a CSV file. The data frame DF has columns that contain observed values and a column ( VaR2 ) that contains the date at which a measurement has been taken. If the date was not recorded, the CSV file contains the value NA , for missing data.
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Installing Apple's Network Link Conditioner Tool
I have installed xcode 4.3.1 on my machine running Lion.
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