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sed 忽略换行符

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sed 忽略换行符

我有一个文本文件，其中包含如下内容：

eval_config: {
  <variable number of lines and contents>
}

那么我该如何匹配呢？使用：

sed -i 's/eval_config: {.*\+}/replacement_text/g' filename似乎停在换行符处。

答案1

具有多行的示例测试文件

eval_config: {
  Contrary to popular belief, Lorem Ipsum is not simply random text. It has roots in a piece of classical Latin literature from 45 BC, making it over 2000 years old. Richard McClintock, a Latin professor at Hampden-Sydney College in Virginia, looked up one of the more obscure Latin words, consectetur, from a Lorem Ipsum passage, and going through the cites of the word in classical literature, discovered the undoubtable source. Lorem Ipsum comes from sections 1.10.32 and 1.10.33 of "de Finibus Bonorum et Malorum" (The Extremes of Good and Evil) by Cicero, written in 45 BC. This book is a treatise on the theory of ethics, very popular during the Renaissance. The first line of Lorem Ipsum, "Lorem ipsum dolor sit amet..", comes from a line in section 1.10.32.

The standard chunk of Lorem Ipsum used since the 1500s is reproduced below for those interested. Sections 1.10.32 and 1.10.33 from "de Finibus Bonorum et Malorum" by Cicero are also reproduced in their exact original form, accompanied by English versions from the 1914 translation by H. Rackham.
}

也许尝试一下

sed ':again;$!N;$!b again; s/eval_config: {[^}]*}/\eval_config: {replacement text}/g'  testfile

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