From: Neubyr Neubyr <neubyr@...>
Date: 2012-01-07T13:07:01+09:00
Subject: one liner to insert line in a file

Can someone help to come up with Ruby one-liner to add a line at the
beginning of a file? Basically a Ruby equivalent for following sed
example-
$ sed -i "1i $variable" file.txt

--neubyr

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