How do you rename file "new" in file "old"?
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mv new old
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none
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cp new old
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rm new old
A
Correct answer
Explanation
The mv command in Unix/Linux renames files. 'mv new old' renames the file named 'new' to 'old'. The cp command copies files, rm removes files, and there is no dedicated rename command - mv serves both move and rename purposes.