Explain how to use grep command to list find the records of a file containing 10 different strings?
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Assume the following files are in the working directory prompt> ls -l tasks -rw-r--r-- 1 alex student 1423 Feb 21 14:01 tasks What command can Alex use to give everyone permission to write to the file? What will the ls -l command display if he does so?
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Write a grep (or grep) command that selects the lines from a file that have exactly three characters.
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