sed - 如何使用sed替换换行符（\ n）？(How can I replace a newline ( ) using sed?)

Question

How can I replace a newline (" \n ") with a space ("

(如何将换行符（“ \n ”）替换为空格（“) ") using the sed command?

(“）使用sed命令？)

I unsuccessfully tried:

(我尝试失败：)

sed 's#
# #g' file
sed 's#^$# #g' file

How do I fix it?

(我如何解决它？)

  ask by hhh translate from so

Answer 1

sed is intended to be used on line-based input.

(sed旨在用于基于行的输入。)

Although it can do what you need.

(虽然它可以满足您的需求。)

---

A better option here is to use the tr command as follows:

(更好的选择是使用tr命令，如下所示：)

tr '
' ' ' < input_filename

or remove the newline characters entirely:

(或完全删除换行符：)

tr -d '
' < input.txt > output.txt

or if you have the GNU version (with its long options)

(或您是否拥有GNU版本（及其长选项）)

tr --delete '
' < input.txt > output.txt