02 Navigation

Question 1

What command does ‘pwd’ invoke?

Answer 1

Print Working Directory. Lists contents of the current directory.

Question 2

What command does ‘ls’ invoke?

Answer 2

Lists contents of the current or specified directory.

Question 3

What command does ‘cd’ invoke?

Answer 3

Change Directory: changes to the specified directory.

Question 4

With regard to relative pathnames, what does ‘.’ In a directory listing represent?

Answer 4

‘.’ Represents the current directory

Question 5

With regard to relative pathnames what does ‘..’ represent?

Answer 5

Represents the parent directory of the working directory.

Question 6

File names that begin with a period (.) are [visible/hidden].

Answer 6

Hidden

Question 7

File names and commands are [case sensitive / case-insensitive]?

Answer 7

Case sensitive. ‘File1’ and ‘file1’ refer to different files.

Question 8

True or False: Linux has no concept of file extensions.

Answer 8

True. Although they are typically used, file extensions have no implicit meaning in Linux.