1. The following command will create all of the following directories ~/a/b/c/d:

Question

a) Mkdir -p ~/a/b/c/d
b) Mkdir ~/a/b/c/d
c) Mkdir -all ~/a/b/c/d
d) Mkdir ~ a b c d

Answer 1

The correct answer is a) Mkdir -p ~/a/b/c/d.

The -p option tells the mkdir command to create any necessary parent directories as well. So in this case, it will create the directories ~/a, ~/a/b, ~/a/b/c, and ~/a/b/c/d if they don't already exist.

Option b) Mkdir ~/a/b/c/d will only create the directory ~/a/b/c/d and will fail if any of the parent directories don't exist.

Option c) Mkdir -all ~/a/b/c/d is not a valid option for the mkdir command.

Option d) Mkdir ~ a b c d is also not a valid option for the mkdir command.