I/O redirection

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### command 1 ### # put the command here ### command 2 ### # put the command here ### command 3 ### # put the command here ### command 4 ### sort x 2> memyselfandi ### command 5 ### sort < x 2> memyselfandi ### command 6 ### <x 2> memyselfandi sort ### command 7 ### # put the command here
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