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How do I read the first line of a file using cat?

How do I read the first line of a file using cat ? 10 Answers 10 ...
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String formatting: % vs. .format vs. string literal

Python 2.6 introduced the str.format() method with a slightly different syntax from the existing % operator. Which is better and for what situations? ...
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Access mysql remote database from command line

...e a server with Rackspace. I want to access the database from my local machine command line. 17 Answers ...
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Authorative way to override onMeasure()?

What's the correct way of overriding onMeasure()? I've seen various approaches. For example, Professional Android Development uses MeasureSpec to calculate the dimensions, then ends with a call to setMeasuredDimension(). For example: ...
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SourceKitService Terminated

I am having a issue with Xcode where the error "Source Kit Service Terminated" is popping up and all syntax highlighting and code completion is gone in Swift. How can I fix this? ...
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How do I install Python packages on Windows?

I'm having a hard time setting up python packages. EasyInstall from SetupTools is supposed to help that, but they don't have an executable for Python 2.6. ...
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Singleton with Arguments in Java

I was reading the Singleton article on Wikipedia and I came across this example: 20 Answers ...
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How can I convert an RGB image into grayscale in Python?

I'm trying to use matplotlib to read in an RGB image and convert it to grayscale. 12 Answers ...
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Why are empty catch blocks a bad idea? [closed]

I've just seen a question on try-catch , which people (including Jon Skeet) say empty catch blocks are a really bad idea? Why this? Is there no situation where an empty catch is not a wrong design decision? ...
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Using $_POST to get select option value from HTML

...tter to give values to your <option> tags? "If no value attribute is included, the value defaults to the text contained inside the element". If it works, what's wrong with that? – osullic Jan 8 '19 at 15:46 ...