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Which of the following commands can be used to format text files?
Correct Answer: D
Explanation/Reference: Explanation: The pr command is used to format text files according to the specified options. This command is usually used to paginate or columnate files for printing. Answer B is incorrect. The ps command reports the status of processes that are currently running on a Linux computer. Answer A is incorrect. The wc command is used to count the number of bytes, words, and lines in a given file or in the list of files. Answer C is incorrect. The tail command is used to display the last few lines of a text file or piped data.