使用 PASTE 在合并文件之间插入两个换行符

Question

我正在使用以下命令合并多个文件：paste -d"\n \n" -s *.md > big-markdown-file.md.

我的问题是合并文件之间只有一个换行符：

# This is the start of 
Lorem ipsum dolor sit amet, te eos solet copiosae deterruisset, mea eu augue postulant temporibus. Sit ex definiebas referrentur. This is the end of file1.
# This is the start of File2.md
Lorem ipsum dolor sit amet, te eos solet copiosae deterruisset, mea eu augue postulant temporibus. Sit ex definiebas referrentur. This is the end of file2.
# This is the start of File3.md
Lorem ipsum dolor sit amet, te eos solet copiosae deterruisset, mea eu augue postulant temporibus. Sit ex definiebas referrentur. This is the end of file3.

这会在处理降价时导致问题，将 lorem ipsum 段落变成标题。有没有办法在最终文件中的各个粘贴之间引入 2 个换行符，以便它输出如下内容：

# This is the start of 
Lorem ipsum dolor sit amet, te eos solet copiosae deterruisset, mea eu augue postulant temporibus. Sit ex definiebas referrentur. This is the end of file1.

# This is the start of File2.md
Lorem ipsum dolor sit amet, te eos solet copiosae deterruisset, mea eu augue postulant temporibus. Sit ex definiebas referrentur. This is the end of file2.

# This is the start of File3.md
Lorem ipsum dolor sit amet, te eos solet copiosae deterruisset, mea eu augue postulant temporibus. Sit ex definiebas referrentur. This is the end of file3.

Answer 1

也许 "cheat" 并创建一个虚拟文件？

$ touch dummy
$ paste -d"\n" -s *.md dummy > big-markdown-file.md
$ rm dummy # :)

我认为这会导致 paste 尝试使用空文件 "fail" 中的下一行，而不是创建一个空行。

实际上，对于文件列表，您必须为每个文件创建一个虚拟对象：

$ # create dummy files
$ for f in *.md; do echo $f; touch ${f}_dummy.md; done
$ # create the result files
$ paste -d"\n" -s *.md > big-markdown-file.md
$ # remove dummy files
$ find -name '*dummy.md' -delete

使用 PASTE 在合并文件之间插入两个换行符

Insert two line breaks inbetween merged files using PASTE

bash

paste