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

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

2. The following command will copy all files with the name that begins with any single char followed by either character 4 or 5 and ends with any other characters.
a) cp ?[45]* ~/
b) cp ????? /
c) cp a4file ~/
d) cp *[45]* ~/

3. The value of 741 would define permissions to be:
a) Rwxr ---- x
b) Rwxr –r-x
c) Rwxrw-rw-
d) Rwxr-x—x

4. The following command will remove all folders on the following path: /a/b/c/d. note that there are files in those folders.
a) rm /a -r
b) rm /a/b/c/d -r
c) rmdir /a/b/c/d
d) rmdir -p /a/b/c/d

5. when a file is stored on a disk, the system generally uses a number of sectors as a storage unit. This storage unit is called a data block.
a) True
b) False

1. a) Mkdir -p ~/a/b/c/d

2. a) cp ?[45]* ~/

3. b) Rwxr –r-x

4. d) rmdir -p /a/b/c/d

5. a) True