Category: Basic of linux unix

A. [!ijk]
B. [ijk]
C. ?
D. *

A. mkfs
B. fdisk
C. fsck
D. mount

A. countw
B. wcount
C. wc
D. count p

A. pid
B. du
C. ps
D. au

A. chgrp
B. chown
C. chmod
D. chusr

A. copy
B. cp
C. cpio
D. tar

A. !
B. $
C. #
D. @

A. to exit status of ast command executed.
B. to process number of the current shell
C. to list the positional parameters
D. to name the command being executed

A. :q
B. :w
C. q!
D. 😡

A. data link layer
B. transport layer
C. network layer
D. session layer