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What is the correct answer?

4

How to print lines of a given text file from line number 2 to 4 using AWK?

A. awk 'NR==2, NR==4 {print NR,$0}'

B. awk 'NR==2 to NR==4 {print NR,$0}'

C. awk 'NR==2-4 {print NR,$0}'

D. awk 'NR==2,4 {print NR,$0}'

Correct Answer :

A. awk 'NR==2, NR==4 {print NR,$0}'


The 1st command is correct to print lines from 2 to 4.

Related Questions

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4

Which run-level is used with the init command to reboot the system?

A. 0

B. 1

C. 4

D. 6

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4

Which of the following built-in variable is used that contains the name of the specified file in the AWK command?

A. NAME

B. FILENAME

C. FNAME

D. FN

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4

Which command is used to check network cable is plugged or not?

A. ifplugstatus

B. ifcableplug

C. ifcablestatus

D. isplugstatus

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4

Which of the following symbol is used to match the empty string at the beginning of a word?

A. \

B. %

C. $

D. (

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4

Which of the following is known as match operator in AWK?

A. =

B. !

C. ~

D. ==

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4

Which of the files gets edited when we create a new in Linux operating system?
a) /etc/group
b) /etc/shadow
c) /etc/gshadow
d) /etc/passwd
Options:

A. A and B

B. C and D

C. A, B, and C

D. A, B, C, and D

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4

Which exact command is used to assign all read, write and execute permission to all owners of a file?

A. chmod 7

B. chmod 777

C. chown 777

D. chgrp 777

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4

Which of the following symbol is used to match exactly one character?

A. $

B. ?

C. _

D. +

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4

There are the following statements that are given below, which of them are correct system libraries in Linux operating system?
a) System libraries are a special program.
b) We can use kernel functionalities using system libraries.
c) System libraries are user programs.
d) System libraries used system calls.
Options:

A. A and B

B. B and C

C. A, B, and D

D. A, B, and C

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4

Which of the following command is used to paste before the current line in the vi editor?

A. y

B. Y

C. p

D. P

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4

What operations are performed when a new user is created?

A. Creates a new home directory for the user

B. The ownership and permissions are assigned to the home directory

C. Both of the above

D. None of the above

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4

There are the following statements that are given below, which of them are the correct about the service command in the Linux system?
a) The service command is used to start a service by calling the associated script.
b) The service command is used to stop service by calling the associated script.
c) The service command is used to pause a service by calling the associated script.
d) The service command is used to restart a service by calling the associated script.
Options:

A. A and B

B. A, B, and D

C. B, C, and D

D. A, B, C, and D

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4

There are the following options that are given below, which of them are correct signals used in the Linux?
a) SIGINT
b) SIGHUP
c) SIGQUIT
d) SIGKILL
Options:

A. A and B

B. A, B, and C

C. A, C, and D

D. A, B, C, and D

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4

How to print non-empty line from the given file using AWK?

A. awk 'NF > 0'

B. awk 'NF'

C. awk 'NE > 0'

D. awk 'NE'

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4

Which Linux command is used to know, how long a computer has been running?

A. startup

B. uptime

C. startuptime

D. time

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4

Which of the following commands are used to display the information about the Linux commands?
a) man
b) info
c) infocmd
d) All the above
Options:

A. A and B

B. A, B, and C

C. A, C, and D

D. A, B, C, and D

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4

Which command is used to copy a file from one location to another location?

A. copy

B. copyfile

C. cp

D. None of the above

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4

Which of the following command is used to extract text from binary or executable files in the Linux operating system?

A. strings

B. string

C. str

D. strbin

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4

The /opt directory comes in which category of directories?

A. Binary directories

B. Data directories

C. Variable directories

D. Memory directories

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4

Which of the following commands are used to know about the current user?
a) who
b) whoami
c) who am i
d) w
Options:

A. A and B

B. C and D

C. A, B, and C

D. A, B, C, and D

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4

Which of the following command is used to repeat the last command in the vi editor?

A. Dot (.)

B. !

C. @

D. $

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4

Which of the following command is not used to extract a compressed file?

A. untar

B. tar

C. gunzip

D. bunzip2

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4

Which of the following signal is used to PAUSE and STOP the processes?

A. SIGSTOP

B. SIGSTP

C. SIGPAUSE

D. SIGPS

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4

Which of the following option is used in grep command to search specific words from a file by ignoring case?

A. -a

B. -i

C. -c

D. -ing

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4

Which of the following directories that contain the shared libraries in the Linux System?

A. /sbin

B. /lib

C. /bin

D. /opt

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4

Which Linux command is used to display information regarding file systems about the total space and free space?

A. file

B. info

C. df

D. ds

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4

Which of the following information can be displayed using the netstat command?
a) Information about programs related to open socket.
b) Information about routing tables.
c) Statistics about all ports
d) All of the above
Options:

A. A and B

B. B and C

C. A and C

D. D

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4

Which of the following modes are used to assign permission to the file in the Linux operating system?

A. Numeric mode

B. Symbolic mode

C. Both

D. None

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4

Which of the following command is used to display and manipulate routing tables in the Linux operating system?

A. routepath

B. routetable

C. route

D. alterroute

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4

There are the following statements that are given below, which of them are correct about GID in the Linux operating system?
a) GID is a group identification number that is used it identify a group in Linux OS.
b) GID is provided by the Linux operating system to the newly created group.
c) GID is provided by the user who created the group in the Linux operating system.
d) GIDs are stored in /etc/group file.
Options:

A. A and B

B. A, B, and D

C. A, B, and C

D. B, C, and D