阅读背景:

unix: 从文本中截取指定匹配行(sed的用法)

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首先准备一段文本:test01.txt

begin
how are you?
fine thank you,and you?
i am fine too.
end
^Bbegin
please give me the paper.
ok,here you are.
thank you
^Cendbegin
how are you?
fine t



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