Which symbol is used with the environment variable name?
#
@
&
$
Correct Answer :
D. $
The dollar ($) symbol is used with the environment variable name.
Related Questions
Which of the following command is used to display the calendar?
cal
calendar
calen
cln
Which of the following are non-standard directories?
a) /lost+found
b) /var
c) /run
d) /cdrom
Options:
A and B
A and C
A, C, and D
A, B, C, and D
Which of the following command is used to check a Linux command is a built-in shell command or external command?
cmdtype
type
ctype
commandtype
What is the extension of compressed file generated by bzip2 command?
.zip2
.bz2
.b2
.z2
How to check the version of the ls command?
ls -v
ls --v
ls -version
ls --version
Which of the following option is used to mention delimiter in the cut command?
-del
-d
-delmiter
-delm
There are the following statements that are given below which of them are correct about cut command?
a) The cut command is used to select a specific column of a file.
b) We can use a delimiter in the cut command to separate the columns of a file.
c) We cannot use a delimiter in the cut command.
d) The cut command is used to move files from one location to another location.
Options:
Only A
Only B
A and B
A and C
There are the following statements that are given below, which of them are correct about root directory in Linux?
a) All directories have come inside the root directory in the Linux operating system.
b) The root directory is represented by a forward slash (/).
c) The root directory is represented by a backward slash (/).
d) The root directory is the part of Linux Kernel
Options:
A and B
A and C
A, B, and C
A, B, C, and D
Which exact command is used to change the size of MTU?
ifconfig
ifconfig mtu
ifconfig mtu
ifconfig
Which of the following command is known as bang bang in the Linux operating system?
##
,
!!
@@
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
What is the full form of GPL in Linux licensing?
Global Public License
General Private License
General Public License
Global Private License
Which command is used to know information about a password?
change
knowpass
passinf
info
Which option is used in sort command, if we want to sort the content of the file based on a specific column number?
-c
-k
-n
-f
There are the following statements that are given below, which is correct about the SHELL environment variables in Linux operating system?
This environment variable is used to execute shell scripts.
This environment variable contains the path of shell which is being used by the user.
This environment variable contains the path of the compiler which is used for shell script compilation.
This environment variable is set by default with the username.
Which of the following statements are the correct about grep command?
a) This command is used to filter the content of the file.
b) This command is not used to filter the content of the file.
c) We can search the specified word in the file using grep command.
d) There is no grep command that exists in the Linux operating system.
Options:
Only A
Only A
A and B
A and C
How to print non-empty line from the given file using AWK?
awk 'NF > 0'
awk 'NF'
awk 'NE > 0'
awk 'NE'
There are the following statements that are given below which of them are correct about the tracepath command in the Linux operating system?
a) It is also used for network troubleshooting.
b) This command requires root privileges.
c) By default, it is installed in the Linux system
d) All of the above
Options:
A and B
B and C
A and C
D
There are the following statements that are given below, which of them are correct about the id command in the Linux operating system?
a) This command describes the user id.
b) This command describes the group id.
c) This command describes the list of groups belongs to the user.
d) All the above
Options:
A and B
A and C
B and C
D
Which of the following directories contains binary files?
a) /sbin
b) /lib
c) /bin
d) /var
Options:
A and B
A and C
A, B, and C
A, B, C, and D
Which of the following commands are used to create files in the Linux Operating System?
a) cat
b) echo
c) touch
d) printf
Options:
A and B
C and D
A, B, and C
A, B, C, and D
Which of the following directory contains the scripts related to service used in the Linux operating system?
/etc/services/
/etc/scripts/
/etc/init.d/
/etc/services/scripts/
Which of the following command is used to delete till the end of the line in the vi editor?
$
d$
d0
DD
How can we see the compression ratio of a file?
Using -c option of gzip command
Using -r option of gzip command
Using -l option of gzip command
Using -cr option of gzip command
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 and B
B and C
A and C
D
Which of the following command is used to search the file(s) within the specified directory?
search
find
fileseach
fsearch
A Linux operating system supports?
a) Multitasking
b) Multiprogramming
c) Multiuser
d) Multithreading
Options:
A and C
A, C and D
A, B, and C
A, B, C, and D
Which of the following correct tasks that can be done by AWK?
a) We can scan a file line by line using AWK.
b) It is used to transform data files.
c) It is used to perform operations on matched lines.
d) We can produce formatted reports using AWK.
Options:
A and B
A, C, and D
A, B, and D
A, B, C, and D
Which of the following directory contains C language header files?
/usr/cfiles
/usr/include
/usr/headers
/usr/includes
In which unit, time passed in sleep command by default?
Seconds
Minutes
Milliseconds
Microseconds