如何使用标准的Linux工具用文本文件的内容替换`---'分隔的块？

Question

我有一个看起来像这样的文本文件：

Some text here. This text is not replaced.

---

And then a wild block appears!
It has stuff in it that I'm trying to replace.

---

The block is no more. Nothing to replace here. 

另一个文本文件，其内容要插入：

A multi-
line thing to replace. 
This block is not demarcated 
in the same way
as the other

我想做的是用文本文件的内容替换---分隔的块，使其看起来像这样：

Some text here. This text is not replaced.

A multi-
line thing to replace. 
This block is not demarcated 
in the same way
as the other

The block is no more. Nothing to replace here. 

这类似于这个问题 ，但是我不认为这适用，因为我要处理的是多行块，而sed似乎并不擅长于此 。 awk或ruby可以这样做吗？

Answer 1

未经测试，但如果不是您想要的，将很接近：

awk '
NR==FNR { file1 = file1 $0 RS; next }
/---/ {
    if (f) {
        printf "%s", file1
    }
    f = !f
    next
}
!f
' file1 file2