Which of the following statements are the correct about XXXsed command?
a) The sed command is used to display modified data on the console screen, actual data in the file remain the same.
b) The sed command is used to modify the data of a file permanently.
c) The regular expressions are used to display modified data of a file in the sed command.
d) The sed command does not use regular expressions.
Options:
A and C
A and D
B and C
B and D
Correct Answer :
A. A and C
Statements A and C are correct about sed command in the Linux operating system.
Related Questions
Which of the following command is used to undo the last command in the vi editor?
uu
x
X
u
Which exact command is used to see the permissions of a file in the Linux operating system?
perms
file -perm
ls -l
ls -perm
In which year Linux was developed?
1989
1990
1991
1993
Which of the following is not a data directory?
/mnt
/root
/home
/proc
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
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 commands are used to download files from a specified URL?
a) curl
b) wget
c) filedownload
d) All of the above
Options:
A and B
A and C
B and C
D
Which of the following terminal command is used to send an email?
electronicmail
mailcmd
The grep stands for?
Global Regular Expression Print
General Regular Expression Pegging
General Regular Expression Post
Global Regular Expression Post
Which command is used to pass control of group membership to another user?
groupuser
gpasswd
grouppasswd
None of the above
Which exact command is used to remove a directory with its sub-directories?
rmdir -a
rmdir -p
rmdir -s
rmdir -k
Which of the following types of arguments or operators are supported by expr command?
a) Plus '+' operator
b) Modulus operator
c) Regular expressions
d) Set of characters in the string
Options:
A and C
A and B
A, B, and C
A, B, C, and D
Which of the following directories contains configuration files?
a) /opt
b) /var
c) /boot
d) /etc
Options:
A and B
C and D
A, B, and D
A, B, C, and D
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
Which of the following directory contains C language header files?
/usr/cfiles
/usr/include
/usr/headers
/usr/includes
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
Which of the following command is used to know about the swap memory of the system?
swapmem
free
sw
sp
There are the following statements that are given below, which of them are correct about bang bang command in the Linux operating system?
The bang bang command is used to remove commands history.
The bang bang command is used to remove execute last executed command.
The bang bang command is used to display the last login time of the current user.
None of the above
What operations are performed when a new user is created?
Creates a new home directory for the user
The ownership and permissions are assigned to the home directory
Both of the above
None of the above
There are the following statements that are given below, which of them are correct about Regular expressions in the Linux operating system?
a) The regular expressions are strings that are used for pattern matching in some Linux commands.
b) The regular expressions are also known as a regex.
c) The regular expressions use some characters that each has a different meaning.
d) Regular expressions can only be used in the Linux commands.
Options:
A and B
C and D
A, B, and C
A, B, C, and D
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 are the types of file owners in the Linux Operating System?
a) User
b) Group
c) Other
d) None of the above
Options:
A and B
C and D
A, B, and C
D
Which exact command is used to change the group of a user in the Linux system?
usermod -g
usermod -g
usermod -c
usermod -c
What is the full form of MTU?
Maximum Transmission Unit
Minimum Transmission Unit
Multiple Transmission Unit
Minimum Transactional Unit
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
There are the following statements that are given below, which of them are correct about touch command in Linux?
a) It is used to create empty files.
b) It is used to update the timestamp of the existing file.
c) It is used to write formatted data into the file.
d) It is used to view the content of the file.
Options:
A and B
B and C
A, B, and C
A, B, C, and D
Which of the following Linux distribution does not follow the File Hierarchy System?
a) Ubuntu
b) GoboLinux
c) NixOS
d) Redhat
Options:
A and B
A and C
B and C
B and D
There are the following options that are given below, which of them are correct directory types in the Linux operating system?
a) Binary directories
b) Data directories
c) Variable directories
d) Memory directories
Options:
A and B
A and C
A, B, and D
A, B, C, and D
Which command is used to know information about a password?
change
knowpass
passinf
info
Which of the following command is used to replace the specific word, for example we want to replace inclusion by exclusion?
echo inclusion | sed 's/in/ex'
echo inclusion | sed 's/ex/in'
echo inclusion | sed 'r/in/ex'
echo inclusion | sed 'R/in/ex'