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by geofft 3934 days ago
There are a couple of weird APIs like unshare(2) where it matters that you do things in the shell itself, not in a process spawned by a shell. (chdir(2) might be an even better example, come to think of it.) I once wrote a bash plugin for playing with unshare(2) specifically.

That said, unshare(1) now supports `-r` with `-U`, which was the thing I needed.