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  • This worked well for me although @Gilles answer is also really good.
    – cwd
    Commented Dec 20, 2011 at 23:29
  • @cwd: Doesn't work for me: echo -e '#!/bin/bash -i\necho interactive $-' > ~/test.sh && chmod +x ~/test.sh && env -i ~/test.sh outputs interactive himB.
    – Alix Axel
    Commented Nov 18, 2012 at 3:14