R4RIN – MCQs, Mock Tests | Unix/Lunux Unix MCQS Set 4

The File that contains a set of instructions which are performed when a user logs in, is

1. autoexec.bat
2. .exrc
3. .profile
4. .autoexec

✅ Correct Answer: 3

The octal representation 652 indicates

1. Execute permission for the owner
2. Write permission for others
3. Read and write permission of groups
4. All of the above

✅ Correct Answer: 2

Which of the following command is used to count just the number of lines contained in a file?

1. wc -l
2. wc -c
3. wc -w
4. wc -r

✅ Correct Answer: 1

Which of the following command is used to go to home directory?

1. cd..
2. cd/
3. cd
4. cd HOME.

✅ Correct Answer: 3

Which command is used to move all files to the bin sub-directory of the parent directory?

1. mv *.* /bin/
2. mv * /bin/*
3. mv * ../bin
4. mv * ../bin *.*

✅ Correct Answer: 3

Which command is used to save the standard output in a file, as well as display it on the terminal?

1. more
2. cat
3. grep
4. tee

✅ Correct Answer: 4

The command that can be used to restrict incoming messages to a user is

1. mesg
2. grep
3. halt
4. sleep

✅ Correct Answer: 1

Which of the following commands is used to copy directory structures in and out

1. cp
2. cpio
3. cp - p
4. copy

✅ Correct Answer: 2

Which of following commands is used for an automatic reminder service?

1. write
2. mesg
3. calendar
4. mail

✅ Correct Answer: 3

Which command allows you to view your file 24 lines at a

1. more
2. pg
3. cat
4. lp

✅ Correct Answer: 2

Which of the following special shell variables is used to process number of the current shell?

1. $!
2. $$
3. $0
4. $*

✅ Correct Answer: 2

Which command is used with vi editor scroll half page backward?

1. [Control-d]
2. [Control - u]
3. [Control-c]
4. [Control -P]

✅ Correct Answer: 2

Which command is used with vi editor to move cursor forward to first occurrence of character 'ch' in the current line?

1. tch
2. fch
3. rch
4. ech

✅ Correct Answer: 2

Which of the following keys is used to delete the character beneath the cursor?

1. x
2. X
3. dd
4. D

✅ Correct Answer: 1

Which command is used to assign only read permission to all three categories of the file 'note'?

1. chmod go+r note
2. chmod a-rw
3. chmod ugo=r note
4. chmod u+r,g+r,o-x note

✅ Correct Answer: 3

Which command will be used with vi editor to append text at end of line?

1. A
2. a
3. i
4. I

✅ Correct Answer: 1

The first set of the three permissions (rw) pertains to the owner of the file, indicating that the owner has

1. executable permission only
2. write and executable permissions
3. both read and executable permissions.
4. both read and write permissions

✅ Correct Answer: 4

Which of the following commands is used to save the output of the who command in a file named user.lst, as well as display it?

1. who | tee user.lst
2. who > user.lst
3. who >> user.lst
4. who < user.lste

✅ Correct Answer: 1

Which of the following shell's wildcards are used to match any number of characters including none?

1. [ijk]
2. [!ijk]
3. ?
4. *

✅ Correct Answer: 4

The command used to remove the directory is;

1. rmdir
2. rd
3. remove
4. rdir

✅ Correct Answer: 1

Which symbol will be used with grep command to match the pattern pat at the end of a line?

1. ^pat
2. $pat
3. pat$
4. pat^

✅ Correct Answer: 3

Which command is used to display all the lines with the string 'sales' from the file empl.lst?

1. cut sales empl.lst
2. /sales > empl.lst
3. grep sales empl.lst
4. cat | /sales > empl.lst

✅ Correct Answer: 3

Which of the following commands is not the vi Input mode command?

1. rch
2. R
3. S
4. j

✅ Correct Answer: 4

Which of the following commands is used to remove files?

1. erase
2. delete
3. rm
4. dm

✅ Correct Answer: 3

Which command is used with vi editor to save file and remain in the editing mode?

1. :q
2. :w
3. q!
4. :x

✅ Correct Answer: 2

You can append to a file instead of overwriting by using the

1. > symbols
2. >> symbols
3. < symbols
4. << symbols

✅ Correct Answer: 2

The [line number G] key allows you

1. to move cursor left by one position
2. to move cursor right by one position
3. to move cursor down by one line
4. to move cursor to the beginning of the line specified by the number

✅ Correct Answer: 4

Which of the following commands is used to have a two-way communication with any person who is currently logged in?

1. mail
2. mesg
3. write
4. grep

✅ Correct Answer: 3

Which command is used with vi editor to move the cursor to the left?

1. i
2. j
3. k
4. h

✅ Correct Answer: 4

Which of command is used to copy a file?

1. copy
2. cp
3. cpio
4. tar

✅ Correct Answer: 0

The special shell variable $* is used

1. to exit status of ast command executed.
2. to process number of the current shell
3. to list the positional parameters
4. to name the command being executed

✅ Correct Answer: 2

The cat command is used to

1. capture a file
2. display a file
3. print a file
4. copy a file

✅ Correct Answer: 2

The UNIX file system stores a data in physical blocks of

1. 1024 bytes
2. 2048 bytes
3. 512 bytes
4. 256 bytes

✅ Correct Answer: 3

Which command is used to terminate all processes in your own system except the login shell?

1. kill 1
2. kill 0
3. cancel all
4. cancel 1

✅ Correct Answer: 2

Which operator will be used with chmod command to assign absolute permission?

1. +
2. -
3. =
4. %

✅ Correct Answer: 3

Which command is used to link the files?

1. lk
2. ln
3. cp
4. tar

✅ Correct Answer: 0

Which of the following signs is used to back up over typing errors in vi?

1. @
2. #
3. $
4. !

✅ Correct Answer: 2

Which of are following internal commands is used in mail to forward mail to user in user-list?

1. r user-list
2. m user-list
3. d user-list
4. e user-list

✅ Correct Answer: 2

Which of are following internal commands is used in mail to forward mail to user in user-list?

1. r user-list
2. m user-list
3. d user-list
4. e user-list

✅ Correct Answer: 2

Which of the following commands is used to display the filenames in multiple columns?

1. ls
2. ls -1
3. ls -x
4. lc

✅ Correct Answer: 3

Which command is used with file named 'note' to remove the executable permission from the user and assign read permission to the group and others?

1. chmod u-x, go+r note
2. chmod go+r, u+x note
3. chmod g-x, uo+r note
4. chmod go+x, u-x note

✅ Correct Answer: 1