[SOLVED] Copy all the text in "File1" and replace it with a specific text in File 2 using sed command

Issue

Let's say I have a file called File1.txt that has the string

Hamburger

And I have another file called File2.txt that has the string:

I love Pizza

I want to use the sed command to make changes such that it copies all the text from File1.txt i.e. Hamburger and replace it in File2.txt with the word Pizza so that the final output in File2.txt would be

I love Hamburger

Is there a way to do this suing the sed command ?

Here's an example of code I am trying to use but it doesn't work:

sed -e '/Hamburger/{r File1.txt' -e 'd}' File2.txt

Solution

You can try this sed

$ sed "s/Pizza/$(cat File1.txt)/" File2.txt
I love Hamburger

Answered By - HatLess

Answer Checked By - Senaida (WPSolving Volunteer)