Why can you uninstall things when they're still running?

I'm aware that apps run in RAM, but what happens if you uninstall an app while it's running and then select an option it that would make it change one of its config files... would it then crash? Or would the file (assuming you have permissions) be rewritten, and left as a remnant when you close the now-deleted program?

Komodo wrote:Because it seems like a fairly major issue that your system undergoes meltdown if something's in use when it's being updated. There really ought to be some sort of check for what's running at the time of update...
Hmm, well, it rarely has the potential to happen - mine wasn't caused by cron, but by a screen status script, and even then it only caused problems because I was running pacman inside screen.  If I had been running pacman in it's own terminal, yes, screen would have crashed, but pacman would not have.
Also, I don't think it's entirely the dev's jobs to prevent users from screwing things up in an update.  I mean, if you want it as safe as possible, we can always go the windows route: "Please reboot now, updates will continue when you reboot" and fully upgrade things via init or something dumb.
I haven't put alot of thought into this, but basically, as long as the terminal you're running pacman in does not crash, it will be fine... I'll try and see if there's any straight forward ways to make sure things are really secure and all, but I'd rather not have to take control over a user machine while upgrading...

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