使用 shell 脚本替换文件中的多行文本

Question

I want to replace multiple lines of text in a file.

Example: I want to replace

Hello
World

With

Hi
Programmer

Can anyone help.

Answer 1

Perl to the rescue!

perl -p -0777 -e 's/Hello\nWorld/Hi\nProgrammer/g'

• -0777 enables the slurp mode, ie it reads the whole file as a single block. You can also use -00 which enables the paragraph mode: it reads the input in blocks separated by at least two newlines, so unless the text to replace contains two consecutive newlines, you can use this mode, too.
• -p for each block, it runs the code and prints the result

Answer 2

Using this command you can accomplish your task. sed -i 's/Hello\nWorld/Hi\nProgrammer/g' your_file.txt