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lang-bash
forloops? You loop over the whole file and then loop again over the file for each element. Get rid of those innerforloops.case, but because you're explicitly grepping through the whole file for every matching word. I don't really see what thecaseis supposed to do anyway, since you could just rungrep -e system-events_ new.txt >> polo.txtetc. The grep would just print an empty output if it didn't match anything.