$ cat ip.txt
address
range
substitution
pattern
sample
Add Sub Mul Div
Line number to line matching pattern
$ sed -n '2,/pat/p' ip.txt
range
substitution
pattern
Line matching pattern to line number
$ sed '/pat/,$d' ip.txt
address
range
substitution
Line matching pattern plus number of lines following it
$ sed -n '/add/I,+1p' ip.txt
address
range
Add Sub Mul Div
0
can be used as starting line number to signal end of range when pattern matches first line of input
$ sed -n '0,/r/p' ip.txt
address
$ sed -n '1,/r/p' ip.txt
address
range
$ sed -n '0,/u/p' ip.txt
address
range
substitution