please post text as text, not a useless screenshot of it, thank you
your “video” is about three frames, and one looks like a glitch.
it’s not “quitting”, it’s working. raspberry pies aren’t terribly fast and OpenCV is a lot of work. especially the last linking step(s).
i try to install opencv and somewhere in the 100% mark. the terminal closes. i dont know what i did wrong.
my raspberry pi is a “Raspberry Pi 3 model B V1.2”
are you double-clicking that shell script, or do you start it from an existing terminal?
how much ram does the computer have, and when you monitor that, what do you see?
i double clicked the script and it gave me 2 options: execute or execute in terminal and i picked terminal.
it has 1gb of ram
that just opens the terminal (vs. not opening a terminal at all and just discarding stdout), but doesn’t keep it open.
open a terminal explicitly, then run that script from there.
this forum is not for help with generic linux user issues. please use https://forums.raspberrypi.com/ for that