Bash, grep between two lines with specified string

Question

Example:

a43
test1
abc
cvb
bnm
test2
kfo

I need all lines between test1 and test2. Normal grep does not work in this case. Do you have any

Answer 1

To make it more deterministic and not having to worry about size of file, use the wc -l and cut the output.

grep -Awc -l test.txt|cut -d" " -f1 test1 test.txt | grep -Bwc -l test.txt|cut -d" " -f1 test2

To make it easier to read, assign it to a variable first.

fsize=wc -l test.txt|cut -d" " -f1; grep -A$fsize test1 test.txt | grep -B$fsize test2