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hello list!
i've learnt to open files like this:

File.open("foo", "w") do |file|
  file.write "foo"
end

because everyone always says it's _dangerous_ to leave files open...
just, wondering, what could really happen?

suppose i write a program that write to a file, infinitely, i'll want to
shut this program off after a while, the file will not properly close...
what could actually happen?

greetings, Dirk.

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