How to use sed to remove the last n lines of a file
bash, linux, sed, shell
Solution
I don't know about `sed`, but it can be done with `head`:
head -n -2 myfile.txt
Problem
I want to remove some n lines from the end of a file. Can this be done using sed? For example, to remove lines from 2 to 4, I can use ``` $ sed '2,4d' file ``` But I don't know the line numbers. I can delete the last line using ``` $sed $d file ``` but I want to know the way to remove n lines from the end. Please let me know how to do that using sed or some other method.