Objective Type Question Answers of Operating System

1. Which of the command is used to remove files ?
a. erase
b. rm
c. delete
d.dm
Ans: b
2. Which of the following command is used to count just the number of lines contained in a file ?
a. wc-1
b. wc-w
c.wc-c
d. wc-r
Ans: a
3. Which command is used to copy a file wb with the same name from the programs directory to the misc. directory ?
a. copy programs/w
b misc/wbb. cp programs/wb misc
c. copy a:programs/wb
b:misc/wbd. tar programs/wb misc/wb
Ans: b