Oops: Twenty-eight years ago, Pixar nearly lost 90% of Toy Story 2's digital files – not because a system crashed, but because someone ran a routine Unix command that engineers had been using for years without a second thought. The command /bin/rm -r -f instructs the system to recursively delete everything under a directory without asking for confirmation. At Pixar in 1998, it was apparently executed in the wrong location.
