1-1) If you are using more to examine a file and decide you want to look back at the previous page, what do you enter?

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1-2) From more, how can you quickly start editing the current file with vi?

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1-3) What command tells cut to output the first five characters of every line from the file practice?

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1-4) What command tells grep to look for all lines consisting of only the letter Z followed by any four characters in a file filename?

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