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Description
While the fruit_stand example pipeline is correct, the pipeline appends data in the filter step and might confuse users since the final output will change after re-running the pipeline multiple times. A solution is to remove all previous results or highlight the fact that the final result will update since each pipeline run will append to the previous results. The troublesome line:
for fruit in apple orange banana; do grep $fruit /walrus/input/set1.txt | awk '{print $2}' >> /walrus/filter/$fruit; done