Introduction to Linux I Chapter 5 Exam Answer 2016

1. The ls command will list which of the following by default?

• The root directory
• The current directory
• Nothing; it requires an argument
• User’s home directory

2. User home directories often contain hidden files.. True or False?

• True
• False

3. Use the ___ option to display hidden files with the ls command.

• -A
• -h
• -D
• -a

4. The ls command can list the contents of only one directory at a time.. True or False?

• True
• False

5. The “.” in an ls listing represents:

• Directories that can’t be accessed
• Hidden files
• The end of the command output
• The current directory

6. To perform a “long listing” to show file details, use which of the following commands:

• ls -D
• ls -L
• ll
• ls -l

7. Using the touch command and specifying a nonexistent file…

• prompts the user to create a file.
• creates a blank file with that name.
• generates an error.
• does nothing.

8. The touch command can be used to change a file’s time-stamp to something other than the current system time.. True or False?

• True
• False

9. By default, what does the cp command preserve from the original file?

• The timestamps
• The name
• The permissions and ownership
• The contents

10. To copy the contents of a directory, use the following option(s) for the cp command:. (choose two)

• -A
• -r
• -d
• -R

11. To maintain timestamps when using the cp command, use:

• -T
• -A
• -a
• -t

12. The mv command can be used to move more than one file at a time.. True or False?

• True
• False

13. The mv command will rename a file when a new directory is not specified.. True or False?

• True
• False

14. Which option for the rm command will cause it to prompt before deleting files?

• -I
• -p
• -i
• -a

15. Which option(s) for the rm command can be used to delete directories that contain files?. (choose two)

• -r
• -R
• -A
• -D

16. The rm command can be used with glob characters to delete multiple files.. True or False?

• True
• False

17. The mkdir command cannot be used to:

• Delete a directory
• Create new directories
• Create multiple directories at once
• Create sub-directories in different parent directories

18. Which mkdir option should be used to create parent directories (that don’t already exist) along with the specified directory?

• -F
• -d
• -A
• -p

19. The rmdir command can be used to delete directories and their contents.. True or False?

• True
• False

20. The ls-l command output will not include:

• File permissions
• Timestamp
• Hard link count
• File contents

21. Which character at the beginning of a long listing indicates a directory?

• –
• l
• c
• d

22. Which character at the beginning of a long listing indicates a regular file?

• l
• d
• –
• c

23. Which character at the beginning of a long listing indicates a symbolic link?

• d
• c
• –
• l

24. The names of hidden files begin with the ___ character.

• *
• >
• +
• .

25. Which option to the ls command will sort the output by size instead of alphabetically?

• -r
• -s
• -S
• -t

26. Which option to the ls command will sort the output by time-stamp?

• -t
• -s
• -S
• -r

27. Which option to the ls command will reverse the sort order?

• -t
• -r
• -S
• -s

28. The file command uses _____ to determine file types.

• magic
• the “magic” file
• alchemy
• a random number generator

29. By default, using the touch command on an existing file will update the file’s _____.

• Timestamp
• Type
• Permissions
• Ownership