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(08 Dec 2010,
TobyCabot
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---+ Linux What's the difference between =touch file= and =echo -n > file= and =rm file=? <br/> Hint: what happens if someone else has the file open, for example, a logfile? ---+ Ruby Why does this happen? <pre> $ irb ruby-1.8.7-p302 > i = 1.2 - 0.1 => 1.1 ruby-1.8.7-p302 > i == 1.1 => false </pre> Hint: what happens when you do the same thing in python or perl? What's the difference between =proc=, =Proc.new=, and =lambda=?
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