In which unit, time passed in sleep command by default?
Seconds
Minutes
Milliseconds
Microseconds
Correct Answer :
A. Seconds
By default time passed in seconds in sleep command.
Related Questions
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
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
Which of the following command is used to update the database used by the locate command?
updatelocate
updatelocatedb
locatedb
updatedb
There are the following commands that are given below, which of them are correct locate command in the Linux operating system?
a) The locate command is also used to search a file.
b) The locate command searches the file into the database.
c) The locate command slower than find command.
d) The locate command search file in MySQL database only.
Options:
A and B
A and C
A, B, and C
A, B, C, and D
Which exact command is used to kill a process by name?
killall
kill -n
kill -p
kill -s
What is the full form of AWK?
Active Working Kit
Active Well Kudos
Aho Weinberger Kernighan
Anderson Washington Kernighan
Which of the following environment variables contains the path of the user's unique id?
UID
USERID
USRID
ID
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'
Which of the following statements are the correct about XXXwc command?
a) This command is used to count the lines of a file.
b) This command is used to count the words of a file.
c) This command is used to count the characters of a file.
d) All the above.
Options:
A and B
A and C
B and C
D
Which of the following option is used for a basic regular expression in the grep command?
-B
-G
-P
-E
Which exact command is used, when we want to add execute permission to all owners of the file?
chmod all x
chmod ax
chmod a+x
None of the above
There are the following statements that are given below, which of them are correct system libraries in Linux operating system?
a) System libraries are a special program.
b) We can use kernel functionalities using system libraries.
c) System libraries are user programs.
d) System libraries used system calls.
Options:
A and B
B and C
A, B, and D
A, B, and C
Which of the following terminal command is used to send an email?
electronicmail
mailcmd
Which command is used to check the type of file?
type
file
filetype
filetypes
Which of the following commands are used to display the information about the Linux commands?
a) man
b) info
c) infocmd
d) All the above
Options:
A and B
A, B, and C
A, C, and D
A, B, C, and D
Which exact command is used to find files whose permissions are 765 in the current directory?
find . -perm 765
find . -per 765
find . -p 765
find . -prm 765
Which of the following command is used to repeat the last command in the vi editor?
Dot (.)
!
@
$
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 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 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
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
The scope of an environment variable can be?
Local
Global
Both
None
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
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
Which of the following command is used to change the group owner of a file?
group
chgroup
chown
chgrp
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 extract text from binary or executable files in the Linux operating system?
strings
string
str
strbin
Which run-level is used with the init command to reboot the system?
0
1
4
6
Which of the following symbol is used to match the empty string at the edge of a word?
\
>
B
Which of the following is not a data directory?
/mnt
/root
/home
/proc