Enumerating and modifying files with a bash script?

Question

linux

Good afternoon.
There is a need to enumerate files (* .ini) in the directory with a bash script and add a certain line there. There is some text in the file, and also in some files there is a line that needs to be commented out, for example: Notify="notify/11111"
I have zero experience in bash scripts.
As I understand it, this can be done through a nested loop, but I did not think of how to do it.

All that was enough for me was just outputting files in a directory :)
find . -name "*.ini"

Answer 1

find . -regex ".*\.\ini" -exec sed -i 's/было/стало/g' "{}" \;

Answer 2

if the files are in the same directory, then
sed -i 's/было/стало/g' /home/user/mydir/*.ini
comment the line:

sed -i 's/Notify="notify/11111"/#Notify="notify/11111"/g' /home/user/mydir/*.ini