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What is the correct answer?

4

Suppose that a text file abc.txt that contains multiple lines, then how to print all complete lines with line numbers using AWK?

A. awk '{print NS,$1}' abc.txt

B. awk '{print NR,$0}' abc.txt

C. awk '{print NR,$1}' abc.txt

D. awk '{print NS,$1}' abc.txt

Correct Answer :

B. awk '{print NR,$0}' abc.txt


The 2nd command is correct to print all complete lines with line numbers using AWK.

Related Questions

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4

Which exact command is used to get information about routing tables?

A. netstat -p

B. netstat -s

C. netstat -r

D. None of the above

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4

Which of the following statements are the correct about XXXcomm command?
a) The comm command is used to compare the data of two files.
b) It displays three columns in the output by default.
c) It displays two columns in the output by default.
d) The comm command is used to communicate with the TCP socket.
Options:

A. A

B. B

C. A and B

D. C and D

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4

Which of the following commands are used to download files from a specified URL?
a) curl
b) wget
c) filedownload
d) All of the above
Options:

A. A and B

B. A and C

C. B and C

D. D

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4

Which exact command is used to show information about specified interface?

A. ip show

B. ip a show

C. ip b show

D. ip show

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4

Which option is used to assign permission to directory recursively?

A. -r

B. -R

C. -REC

D. -rec

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4

There are the following statements that are given below, which of them are correct types of files in Linux?
a) Executable file
b) Device file
c) Named pipe file
d) Block file
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 save and quit from the vi editor?

A. :q

B. :Q

C. :wq

D. :q!

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4

Which of the following notations are correct for owners of a file?
a) a
b) o
c) u
d) g
Options:

A. A and B

B. A, B, and C

C. A, B, and D

D. A, B, C, and D

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4

What are interfaces are supported by the Linux operating system?

A. Graphical User Interface

B. Command Line Interface

C. Both of the above

D. None of the above

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4

There are the following commands that are given below, which of them are correct locate command in the Linux operating system?
a) The locate command is also used to search a file.
b) The locate command searches the file into the database.
c) The locate command slower than find command.
d) The locate command search file in MySQL database only.
Options:

A. A and B

B. A and C

C. A, B, and C

D. A, B, C, and D

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4

Suppose that a text file abc.txt that contains multiple lines, then how to print all complete lines with line numbers using AWK?

A. awk '{print NS,$1}' abc.txt

B. awk '{print NR,$0}' abc.txt

C. awk '{print NR,$1}' abc.txt

D. awk '{print NS,$1}' abc.txt

What is the correct answer?

4

Which of the following command is used to configure a public key at the SSH server for a user?

A. ssh-copy-id

B. ssh-public-key

C. ssh-public-id

D. ssh-copy-key

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4

Which command is used to cut a file from one location and paste to the other location?

A. cut

B. ct

C. move

D. mv

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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

There are the following options that are given below, which is not a correct Linux distribution?

A. CentOS

B. Linux mint

C. SunOS

D. OpenSUSE

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4

Which exact command is used to list the files and directories with group id and owner id instead of their names?

A. ls -l

B. ls -n

C. ls -k

D. ls -h

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4

Which exact command is used to list the files and directories along with hidden files?

A. ls -l

B. ls -k

C. ls -a

D. ls -n

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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 are non-standard directories?
a) /lost+found
b) /var
c) /run
d) /cdrom
Options:

A. A and B

B. A and C

C. A, C, and D

D. A, B, C, and D

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4

Which command is used to compress a file?

A. zip

B. gzip

C. ezip

D. mzip

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4

Which exact command is used to kill a running process using process id?

A. killall

B. kill -9

C. kill -p

D. kill -s

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4

Which command is used to execute a command based on the number assigned in the command history, here we denote command history number by N?

A. !N

B. #N

C. $N

D. !!N

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4

What is the full form of ORS in AWK?

A. Output Record Separator

B. Output Record Symbol

C. Output Resumed Symbol

D. Object Record Separator

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4

The scope of an environment variable can be?

A. Local

B. Global

C. Both

D. None

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4

Which of the following command is used to get information about the File Hierarchy System?

A. man rfs

B. man hier

C. man hfs

D. man fhs

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4

Which exact command is used, remove write, and execute permission from a file?

A. chmod w-x

B. chmod x-w

C. chmod we

D. chmod wx

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4

The grep stands for?

A. Global Regular Expression Print

B. General Regular Expression Pegging

C. General Regular Expression Post

D. Global Regular Expression Post

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4

Which of the following symbol is used to match the empty string if it is not at the edge of a word?

A. \

B. >

C. B

D. E

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4

In which year Linux was developed?

A. 1989

B. 1990

C. 1991

D. 1993

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4

Which of the following command is used to change the permissions of a file?

A. chperm

B. chmod

C. chown

D. permission