PROBLEM 2: Commands

1. What are Commands?

a) specific instructions for performing a particular task

b) part of the operating system

c) part of the shell

d) special instructions

Answer

2. In how many categories, commands of UNIX operating system classified?

a) 1

b) 2

c) Many

d) 0

Answer:

.

3. Which command is used for extracting the details of the operating system?

a) cd

b) echo

c) uname

d) wc

Answer:

4. The sequences of directories that a shell searches while looking for a command is specified in the PATH variable.

a) True

b) False

Answer:

5. Options are also arguments but begin with a -.

a) True

b) False

Answer: