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How to remove local (untracked) files from the current Git working tree

...move ignored files, run git clean -f -X or git clean -fX To remove ignored and non-ignored files, run git clean -f -x or git clean -fx Note the case difference on the X for the two latter commands. If clean.requireForce is set to "true" (the default) in your configuration, one needs to specify -f...
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How to read a file into a variable in shell?

I want to read a file and save it in variable, but I need to keep the variable and not just print out the file. How can I do this? I have written this script but it isn't quite what I needed: ...
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How to remove duplicate white spaces in string using Java?

...atches a space, tab, new line, carriage return, form feed or vertical tab, and + says "one or more of those". Thus the above code will collapse all "whitespace substrings" longer than one character, with a single space character. Source: Java: Removing duplicate white spaces in strings ...
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Can I call a base class's virtual function if I'm overriding it?

Say I have classes Foo and Bar set up like this: 7 Answers 7 ...
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How much is the overhead of smart pointers compared to normal pointers in C++?

...11? In other words, is my code going to be slower if I use smart pointers, and if so, how much slower? 5 Answers ...
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Which, if any, C++ compilers do tail-recursion optimization?

...t it would work perfectly well to do tail-recursion optimization in both C and C++, yet while debugging I never seem to see a frame stack that indicates this optimization. That is kind of good, because the stack tells me how deep the recursion is. However, the optimization would be kind of nice as w...
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How to make my custom type to work with “range-based for loops”?

... The standard has been changed since the question (and most answers) were posted in the resolution of this defect report. The way to make a for(:) loop work on your type X is now one of two ways: Create member X::begin() and X::end...
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Linux how to copy but not overwrite? [closed]

...overwrite any existing files even it they are older than the copied files. And I want to do it completely noninteractive as this will be a part of a Crontab Bash script. Any ideas? ...
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How to use Regular Expressions (Regex) in Microsoft Excel both in-cell and loops

How can I use regular expressions in Excel and take advantage of Excel's powerful grid-like setup for data manipulation? 9 ...
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Split code over multiple lines in an R script

... issue, try R> setwd(paste("~/a/very/long/path/here", "/and/then/some/more", "/and/then/some/more", "/and/then/some/more", sep="")) which also illustrates that it is perfectly fine to break code across multiple lines. ...