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1. Under what circumstances would you archive files using tar? 2. How would you convert the
contents of a file to uppercase? 3. What is the difference between cmp and diff? 4. Describe what
it means to "mount" a file system. 5. Which process serves the crontab system? 6. What
additional functionality does an extended regular expression have? 7. What are the main
differences between sed and awk? 8. How did awk get its name? 9. Under what circumstances
would you use a symbolic link instead of a hard link? 10. What are the drawbacks of using a
symbolic link? 11. What is meant by an incremental backup, and bow would you perform one?
12. What are some ways that Perl makes script programming easier to write than conventional
shell scripts?

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