To ensure the security of the files used by the new Web site, files need to access controls that limit which users can view and execute them. To further your understanding of file permissions, describe in detail these 5 file listings, explain all items on each line, explain what they specify or mean, and give the chmod command to set files with these permissions:It is also a necessity to know and understand regular expressions, not only at the UNIX command line, but editors and some programs use them quite extensively.1.2.3.4.5. Explain the following Metacharacters/Regular Expressions:Give a regular expression to match the following:I also attached a paper because sometimes all the steps don’t come up.
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