Which of the following symbol is used to match preceding character N times or more than N times?
(N)
(N,)
{N}
{N,}
Correct Answer :
D. {N,}
Related Questions
There are the following statements that are given below, which of them are the correct about the uptime command in the Linux system?
a) We can get the current system time using uptime command.
b) We can get the number of users logged in, using uptime command.
c) This command also displays CPU load average.
d) This command also displays the duration for which the computer has been running.
Options:
A and B
B and D
A, B, and D
A, B, C, and D
Which command is used to see what permissions will be provided to the newly created file by default?
default
unmask
permissions
defperm
There are the following statements that are given below which of them are correct about the ss command in the Linux operating system?
a) The ss command is the replacement for the netstat command.
b) It is faster than the netstat command.
c) We can display all UDP and TCP socket connections using ss command.
d) The ss can display all TCP socket connections only.
Options:
A and B
A and C
A, B, and C
A, B, and D
Which of the following command is used to paste before the current line in the vi editor?
y
Y
p
P
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 of the following environment variables contains the path of the user's unique id?
UID
USERID
USRID
ID
Which of the following operator is used to execute multiple commands in a single line?
;
%
&&
||
There are the following statements that are given below, which of them are the correct about the last command in the Linux system?
a) This command displays the information about the last logged in timing for the user.
b) The last command is used to display the last executed process in the system.
c) This command displays IP address, username, and duration of logging in.
d) The log information is stored in the /var/log/wtmp file.
Options:
A and B
A, B, and C
A, C, and D
A, B, C, and D
Which of the following signal is used to PAUSE and STOP the processes?
SIGSTOP
SIGSTP
SIGPAUSE
SIGPS
Who was developed the vi editor?
Bill joy
James gosling
Andy Bechtolseim
Scott G. McNealy
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 and B
C and D
A, B, and C
A, B, C, and D
What are the basic components of the Linux operating system?
a) Kernel
b) Kernel Modules
c) Shared Libraries
d) User Programs
Options:
A and B
A, B, and C
B, C, and D
A, B, C, and D
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
There are the following statements that are given below, which of them are correct about AWK in the Linux operating system?
a) AWK is a scripting language, which is used to perform operations on data and generate reports.
b) The compilation is not required for AWK programs.
c) The compilation is required for AWK programs.
d) We can use logical operators, string functions, and numeric functions in AWK programs.
Options:
A and B
A and D
A, B, and D
A, C, and D
How to check the version of the ls command?
ls -v
ls --v
ls -version
ls --version
Which of the following option is used for a basic regular expression in the grep command?
-B
-G
-P
-E
Which of the following command is used to display the last executed commands list?
lastcmd
last
history
chistory
Which of the following command is used to print the number of lines that exist in the specified file?
awk 'END { print NL }'
awk 'END { print N }'
awk 'END { print NR }'
awk 'END { print NN }'
Which command is used to create multiple directories in a single command?
md
mkdir
makedir
mkdirs
Which command is used to cut a file from one location and paste to the other location?
cut
ct
move
mv
Which Linux command is used to assign a password to the created user?
password
newpass
passwd
pwd
Which of the following command is used to display the path of a command in the Linux File System?
pcmd
which
pathcmd
None of the above
In which year Linux was developed?
1989
1990
1991
1993
Which of the following redirection operator is used to append the content in a file?
>
<
>>
<>
Which of the following characters are used for wildcards in the Linux operating system?
a) ?
b) *
c) []
d) <>
Options:
A and B
A and C
A, B, and C
D
Which of the following command is used to compress a directory?
gzip
dzip
tar
rat
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
Which Linux command is used to un-mount the external storage devices from the Linux file system?
unmount
umount
nmount
None of the above
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 configuration file is used by updatedb command?
/etc/db.conf
/etc/locatedb.conf
/etc/updatedb.conf
/etc/update.conf