Merge sed commands into a script

Question

I need to write these two sed commands in a single script.

sed -n '10,20p' file.txt | sed '1!G;h;$!d'

I selects lines in range from 10 to 20 and prints them in a reverse order Could anybody please help me with this?

Answer 1

This seems to be working

#!/bin/sed -Ef

10!G
h
20!d

Answer 2

If sed is still your most preferable tool then:

$ seq 20 | sed -n '10,15{10!G;h;15p}'
15
14
13
12
11
10

However, I don't like that line numbers (10 & 15) needs to be specified twice. sed -n '10,20p' file.txt | tac seems better...