How to change the normal user to root user using the terminal in the Linux operating system?
Using sudo command
Using su command
Using super command
None of the above
Correct Answer :
B. Using su command
Using su command is used to change a normal user to root user.
Related Questions
Which of the following Linux command is used to transfer files to the remote computer?
cp
copy
ssh-copy
scp
Which of the following commands are used to switch from command mode to insert mode in the vi editor?
a) i
b) a
c) o
d) O
Options
A and B
A and C
A, C, and D
A, B, C, and D
Which of the following command is used to schedule tasks in the Linux system?
schedule
stask
at
ats
Which exact command is used to show information about specified interface?
ip show
ip a show
ip b show
ip
What is the full form of OFS in AWK?
Object Field Separator
Obsolete Field Separator
Officiated Field Separator
Output Field Separator
Which directory contains grub configuration file?
/lib
/usr
/boot
/etc
In the cut command, a delimiter can be?
a) Hyphen
b) Space
c) Slash
d) All of the above
Options:
A
B
C
D
Which of the following command is used to add a key to the SSH agent?
agent
ssh-agent
add-key
ssh-add
Which exact command is used to display the signal names used in the Linux operating system?
signal -all
kill -p
kill -l
kill -s
Which of the following information can be viewed using ifconfig command in the Linux operating system?
a) IP address
b) Mac address
c) MTU
d) All of the above
Options:
A
A and B
A and C
D
By default, which files store output of the command that executed with nohup utility?
nh.out
nohup.out
nohup.txt
nh.txt
Which of the following Linux command is used to set values in environment variables?
setval
setenv
export
env
Which of the following statements are the correct about XXXsort command?
a) This command is used to sort the content of a file in alphabetical order.
b) This command is used to sort the content of a file based on the column.
c) This command is used for numeric sorting bases on the column.
d) None of the Above.
Options:
A and B
A and C
A, B, and C
D
There are the following statements that are given below, which of them are correct about Linux?
a) Linux is system software.
b) Linux is a multitasking operating system.
c) Linux was developed by Dennis Ritchie
d) Linux is an open-source operating system.
Options:
A and B
B and C
A, C, and D
A, B, and D
How to print non-empty line from the given file using AWK?
awk 'NF > 0'
awk 'NF'
awk 'NE > 0'
awk 'NE'
Which of the following command is used to print the 3rd column of a specified file?
awk '{print $3}
awk '{print $2}
awk '{print $N2}
awk '{print $N3}
If we want to assign read and execute permission to the file then which number is used in the chmod command to assign permission?
5
6
7
3
Which of the following directories does not take disk space?
a) /proc
b) /dev
c) /var
d) /home
Options:
A and B
A, B, and C
A, B, and D
A, B, C, and D
Which command is used to know about groups that belong to the current user?
grouplist
groups
groupinfo
groupinformation
Which of the following command uses regular expressions in the Linux operating system?
a) grep
b) sed
c) rename
d) bash
Options:
A and B
C and D
A, B, and C
A, B, C, and D
The grep stands for?
Global Regular Expression Print
General Regular Expression Pegging
General Regular Expression Post
Global Regular Expression Post
Which of the following symbol is used to represent the group of characters?
/
\
+
-
Which of the following command is used to get information about the File Hierarchy System?
man rfs
man hier
man hfs
man fhs
Which command is used to get the path of the current directory?
cdir
dir
pwd
pdir
There are the following statements are given below, which of them are the correct about the ps command in the Linux system?
a) This command is used to display information about processes running in the system.
b) This command displays the memory occupied by a system call.
c) This command displays the process id of the running processes.
d) This command displays the name of the running processes.
Options:
A and B
A, B, and C
A, C, and D
A, B, C, and D
Which of the following command is used to repeat the last command in the vi editor?
Dot (.)
!
@
$
Which of the following command is used to move up in the vi editor?
I
h
j
k
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 and B
C and D
A, B, and C
A, B, C, and D
There are the following options that are given below, which of the following security mechanism are used in the Linux operating system?
a) Authentication
b) Authorization
c) Cryptography
d) All the above
Options:
A and B
B and C
A and C
D
Which of the following option is used to search a file with inode number using find command?
-inode
-inum
-inod
-in