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Using the star sign in grep

...will match a string that contains abc followed by def with something optionally in between. Update based on a comment: * in a regular expression is not exactly the same as * in the console. In the console, * is part of a glob construct, and just acts as a wildcard (for instance ls *.log will list ...
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How to remove new line characters from a string?

...ely the best solution for me. A smooth blend of this C# and javascript was all I needed to resolve my issue. – Joe Brunscheon Nov 26 '13 at 19:30 ...
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Function overloading in Javascript - Best practices

...rings("one",2,true); // result = one2true This particular example is actually more elegant in javascript than C#. Parameters which are not specified are 'undefined' in javascript, which evaluates to false in an if statement. However, the function definition does not convey the information that p2...
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Why do we need a fieldset tag?

...abel for="colour_blue">Blue</label> </fieldset> This allows each radio button to be labeled while also providing a label for the group as a whole. This is especially important where assistive technology (such as a screen reader) is being used where the association of the contro...
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How do I programmatically determine if there are uncommitted changes?

...ing git diff once solves the issue (surprisingly enough, git diff does actually change the content of the sandbox, meaning here .git/index) These timestamp issues can also occur if git is running in docker. Original answer: "Programmatically" means never ever rely on porcelain commands. Always rel...
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How to retrieve a file from a server via SFTP?

...It supports both user/pass and certificate-based logins nicely, as well as all a whole host of other yummy SSH2 features. Here's a simple remote file retrieve over SFTP. Error handling is left as an exercise for the reader :-) JSch jsch = new JSch(); String knownHostsFilename = "/home/username/....
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Is there an easy way to return a string repeated X number of times?

...ing about a string (not a char). The other answers below this one are actually answering the question, but are rated much lower. I'm not trying to disrespect Ahmad's answer, but I think either the title of this question should be changed (if the question is actually regarding characters) or the ...
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What is mutex and semaphore in Java ? What is the main difference?

... has 10 flags, then your thread won't accept new connections Mutex are usually used for guarding stuff. Suppose your 10 clients can access multiple parts of the system. Then you can protect a part of the system with a mutex so when 1 client is connected to that sub-system, no one else should have a...
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What is the difference between static_cast and C style casting?

...runtime. Also, c++ style casts can be searched for easily, whereas it's really hard to search for c style casts. Another big benefit is that the 4 different C++ style casts express the intent of the programmer more clearly. When writing C++ I'd pretty much always use the C++ ones over the the C...
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Git Remote: Error: fatal: protocol error: bad line length character: Unab

I set up a git server and want now to push initially my repo from the client. I used git push origin master and get this error message: ...