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How can I quickly sum all numbers in a file?
I have a file which contains several thousand numbers, each on it's own line:
33 Answers
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How can I check if a command exists in a shell script? [duplicate]
I am writing my first shell script. In my script I would like to check if a certain command exists, and if not, install the executable. How would I check if this command exists?
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How do I set the default locale in the JVM?
I want to set the default Locale for my JVM to fr_CA . What are the possible options to do this?
7 Answers
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Find() vs. Where().FirstOrDefault()
...people using Where.FirstOrDefault() to do a search and grab the first element. Why not just use Find() ? Is there an advantage to the other? I couldn't tell a difference.
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What is the rationale behind having companion objects in Scala?
Is there a case where a companion object (singleton) for a class is needed? Why would I want to create a class, say Foo and also create a companion object for it?
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Does disposing streamreader close the stream?
I am sending a stream to methods to write on, and in those methods I am using a binary reader/wrtier. When the reader/writer gets disposed, either by using or just when it is not referenced, is the stream closed as well??
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How to discard local commits in Git?
I'd been working on something, and decided it was completely screwed...after having committed some of it. So I tried the following sequence:
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What does $@ mean in a shell script?
What does a dollar sign followed by an at-sign ( @ ) mean in a shell script?
6 Answers
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Appending HTML string to the DOM
How to append this HTML string
10 Answers
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Crash logs generated by iPhone Simulator?
Are there any crash logs generated by iPhone Simulator?
6 Answers
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