How to write an ex script that searches for text and deletes the next n lines?

Question

I want to write an ex script that searches for text and then deletes 23 lines. I created an exscript file that contains:

/block_2/
23d
w

I then tried $ ex - index.html < exscript, but it makes wrong, unpredictable edits.

Those commands work when opening the file in ex, but not with the script. How can I fix it? I don't want to use line numbers, since I have to run the script on hundreds of files, and the line numbers will be different.

Answer 1

I figured it out:

Script:

g/block_2/ .,+22 d
x

Then:

$ ex - index.html < exscript