Which of the following command is used to display the last executed commands list?
lastcmd
last
history
chistory
Correct Answer :
C. history
The history command is used to display the last executed commands list.
Related Questions
Which of the following character is used to identify the symbolic link file in the output of ls command?
s
c
l
_
Which of the following command is not used to extract a compressed file?
untar
tar
gunzip
bunzip2
Which of the following command is used to get information about the File Hierarchy System?
man rfs
man hier
man hfs
man fhs
There are the following statements that are given below, which of them are correct about GID in the Linux operating system?
a) GID is a group identification number that is used it identify a group in Linux OS.
b) GID is provided by the Linux operating system to the newly created group.
c) GID is provided by the user who created the group in the Linux operating system.
d) GIDs are stored in /etc/group file.
Options:
A and B
A, B, and D
A, B, and C
B, C, and D
Which of the following command is used to perform mathematical expression and print output on the terminal?
expr
exp
calexp
calexpr
Which exact command is used to get information about routing tables?
netstat -p
netstat -s
netstat -r
None of the above
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
Which exact command is used to change the group of a user in the Linux system?
usermod -g
usermod -g
usermod -c
usermod -c
Which command is used to know about groups that belong to the current user?
grouplist
groups
groupinfo
groupinformation
Which option is used in the regular expression to remove a complete line from the output of a file using sed command?
a) zcat
b) zmore
c) zless
d) zgip
Options:
d
del
delete
rem
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 are correct types of shells used in the Linux operating system?
a) Bourne shell
b) Korn shell
c) Bourne Again shell
d) POSIX shell
Options:
A and B
B and C
A, B, and C
A, B, C, and D
Which of the following command is used to change the owner of a file?
owner
chgown
chown
changeowner
What is the full form of MTU?
Maximum Transmission Unit
Minimum Transmission Unit
Multiple Transmission Unit
Minimum Transactional Unit
How can we differentiate between file and directory from the output of ls command?
Directories are mentioned in capital letters in the output of ls command.
The d character is used before permissions in the output of ls command.
Both of the above
None of the above
In which year Linux was developed?
1989
1990
1991
1993
Which of the following character is used for execute permissions in the Linux operating system?
e
x
E
None
What is the extension of compressed file generated by bzip2 command?
.zip2
.bz2
.b2
.z2
Which exact command is used, when we want to search words in the file that can be ABC1, ABC5, and ABC8?
grep ABC[0-9]
grep ABC(0-9)
grep ABC(0-9)
grep ABC(0-9)
Which command is used to cut a file from one location and paste to the other location?
cut
ct
move
mv
Which of the following directories are known as data directories?
a) /srv
b) /media
c) /home
d) /opt
Options:
A and B
A, B, and C
B, C, and D
A, B, C, and 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
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 is used to match any set of characters from the specified file in the grep command?
()
{}
[]
##
Which of the following symbol is used to match the empty string at the beginning of a word?
\
%
$
(
Which command is used to see what permissions will be provided to the newly created file by default?
default
unmask
permissions
defperm
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
There are the following statements that are given below, which of them are correct about Wildcards in the Linux operating system?
a) Wildcards are the string patterns that contain some special characters.
b) Wildcards are used to perform actions on one or more file that uses the same pattern.
c) Linux shell used wildcard characters for globbing.
d) All the above
Options:
A and B
A and C
A, B, and C
D
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
Which of the following signal is used to PAUSE and STOP the processes?
SIGSTOP
SIGSTP
SIGPAUSE
SIGPS