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.Management Sciences
Category: Basic of linux unix
The command that can be used to restrict incoming messages to a user is_______________?
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A. mesg
B. grep
C. halt
D. sleep
Which of the following commands is used to view your file 24 lines at a time ?
A. pg
B. cat
C. lp
D. /p
Which of the following shell’s wildcards are used to match any number of characters including none ?
A. [ijk]
B. [!ijk]
C. ?
D. *
What command is not used to list the files chap01, chap02 and chap04 ?
A. ls chap*
B. ls chap[124]
C. ls – x chap0[124]
D. ls chap0[124]
Which command is used to concatenate all files beginning with the string ’emp’ and followed by a non-numeric characters ?
A. cat emp[!0-9]
B. more [emp][!0-9]
C. cat emp[x-z]
D. cat emp[a-z]
Which is the earliest and most widely used shell that came with the UNIX system ?
A. C shell
B. Korn shell
C. Bourne shell
D. Smith shell
What TCP/IP protocol is used for remote terminal connection service ?
A. UDP
B. RARP
C. FTP
D. TELNET
What script is run for setting bash global defaults for all users ?
A. /etc/.profile
B. /etc/.bashrc
C. /etc/.log
D. /etc/profile
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