this post was submitted on 12 Oct 2023
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Im not sure if it would delete the whole system. Isn't it more likely that it will destroy everything until it kills a file/directory necessary for the operation to run?
The reason you expect this is because Windows has a file lock behaviour that won’t let you delete a file when it’s in use, in Linux this limitation doesn’t exist.
Raymond Chan, arguably one of the best software engineers in the world, and a Microsoft employee, has repeatedly lamented the near malware like work arounds developers have had to invent to overcome this limitation with uninstallers.
Think about uninstalling a game. You need to run “uninstall.exe” but you don’t want uninstall.exe to exist after you’ve run it… but you can’t delete a file that’s in use. Uninstall.exe will always be in use when you run it….so how do you make it remove itself?
Schedule a task? Side load a process? Inject a process? Many ways…. But most look like malware.
Linux has never suffered this flaw.
I made a Batch uninstaller (to one of my other bat scripts I think), and it could remove itself without any problem just with the command "del whateverthenamewas.bat"
Yeah, because the bat file isn't actually running, it's just a list of commands cmd should execute.
Yup, CMD acts as a parser / runtime and the process is bound to the CMD binary, the script file is being run by CMD which keeps a copy of it in its own working memory in RAM