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    I once found that /dev/null was replaced with a normal file which only root could write to. I thought for a moment that I would have to reinstall everything but as mentioned below, the recovery is trival if you know the trick. Commented Dec 24, 2011 at 12:15
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    I managed to remove /dev/null by getting my pipe wrong flipping $ and & around when running an rm command in a script. Ouch! Commented Oct 9, 2015 at 22:28
  • @flickerfly You develop scripts as root? Commented Jan 14, 2020 at 14:02
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    If the permissions are required, you have to test it eventually. Didn't say it was in production. Commented Jan 14, 2020 at 15:27