Olete.in – MCQs, Mock Tests & Government Job Prep

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

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

✅ Correct Answer: 1

Which command is used to sort the

1. sort
2. sh
3. st
4. sort -r

✅ Correct Answer: 4

Which command is used to display the top of the file?

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

✅ Correct Answer: 2

Which command is used to copy all files having the string chap and any two characters after that to the progs directory?

1. cp chap?? progs
2. cp chap* progs
3. cp chap[12] /progs/*.*
4. cp chap?? /progs/*

✅ Correct Answer: 1

Which command is used to change protection mode of files starting with the string emp and ending with 1,2, or 3?

1. chmod u+x emp[1-3]
2. chmod 777 emp*
3. chmod u+r ??? emp
4. chmod 222 emp?

✅ Correct Answer: 1

Which command is used to remove a directory?

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

✅ Correct Answer: 2

Which of the following keys is used to replace a single character with new text?

1. sort
2. s
3. r
4. C

✅ Correct Answer: 2

Which command is used to extract specific columns from the file?

1. cat
2. cut
3. grep
4. paste

✅ Correct Answer: 2

Which command sends the word count of the file infile to the newfile.

1. wc infile >newfile
2. wc <infile >newfile
3. wc infile - newfile
4. wc infile | newfile

✅ Correct Answer: 1

Which command is used to remove the read permission of the file 'note' from both the group and others?

1. chmod go+r note
2. chmod go+rw note
3. chmod go-x note
4. chmod go-r note

✅ Correct Answer: 4

Which of the following commands is used to display the directory attributes rather than its contents?

1. ls -l -d
2. ls -l
3. ls -x
4. ls -F

✅ Correct Answer: 1

Which of the following files will displayed by this command cat *ch*

1. patch
2. catch
3. .ch
4. All of the above

✅ Correct Answer: 4

The Octal number to be given alogn with chmod command to make a file readable, writable and executable to the owner, readable and executable to group and others is:

1. 0
2. 755
3. 744
4. 555

✅ Correct Answer: 2

If you are to use [Control-c] as the interrupt key instead of [Del], then you will have to use

1. tty ^c
2. stty intr ^c
3. stty echoe
4. stty echo ^a

✅ Correct Answer: 2

Which of the following is not a communication command.

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

✅ Correct Answer: 4

Which of the following keys is used to move the cursor to the end of the paragraph.

1. }
2. {
3. |
4. $

✅ Correct Answer: 1

Which command is used to concatenate all files beginning with the string 'emp' and followed by a non-numeric characters?

1. cat emp[!0-9]
2. more [emp][!0-9]
3. cat emp[x-z]
4. cat emp[a-z]

✅ Correct Answer: 1

The command which transcribes the standard input to the standard output and also makes a copy of the same in a file is

1. tee
2. tr
3. sort
4. grep

✅ Correct Answer: 1

Which command is used to remove a file?

1. remove
2. rm
3. mv
4. del

✅ Correct Answer: 2

Which symbol is used to separate more than one command in the same command line?

1. $
2. #
3. :
4. ;

✅ Correct Answer: 4

The agency that sits between the user and the UNIX system is called the

1. logic
2. profile
3. shell
4. erxc

✅ Correct Answer: 3

Which of the following commands is used to update access and modification times of a file?

1. grep
2. wc
3. touch
4. cat

✅ Correct Answer: 3

Which command is used to count just the number of characters in a file?

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

✅ Correct Answer: 2

Which of the following commands is used to list contents of directories?

1. ls
2. lp
3. dir
4. tar

✅ Correct Answer: 1

Which command is used to display a file contents in octal form?

1. cd
2. od
3. of
4. oct

✅ Correct Answer: 2

Which command will be used with vi editor to insert text to left of cursor?

1. s
2. S
3. a
4. i

✅ Correct Answer: 4

In vi editor, forward search is performed using the command.

1. :pat
2. ?pat
3. /pat
4. All of the above

✅ Correct Answer: 3

Which of the following special shell variables is used to process number of the last background job?

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

✅ Correct Answer: 1

The second set of the three permissions (r-) indicates that

1. group has read permission only
2. other has read permission only
3. owner has read permission only
4. group has write permission only

✅ Correct Answer: 1

Which of the following command addresses all users who are currently hooked on?

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

✅ Correct Answer: 3

Which column contains all details of the permissions of a file when you issue the ls -l command?

1. second
2. fourth
3. third
4. first

✅ Correct Answer: 4

Which of the following directories contain all the Alias created by a user, including his login

1. /tmp
2. /etc
3. /usr
4. /dev

✅ Correct Answer: 3

Which of the following commands is used to obtain a list of all files by modification time?

1. ls -1
2. ls -t
3. ls -i
4. ls -R

✅ Correct Answer: 2

The % key allows you

1. to move the cursor to a matching delimiter, when a delimiters a parenthesis, a bracket, or a brace.
2. to move the cursor to the upperleft corner of the screen
3. to move the cursor backward to the beginning of a word
4. to move the cursor to the first column in the current line

✅ Correct Answer: 1

Which command is used to display the characteristics of a process?

1. pid
2. du
3. ps
4. au

✅ Correct Answer: 3

Which of the following commands is used to identify the type of file by context?

1. Is
2. cat
3. file
4. more

✅ Correct Answer: 3

TWhich of the following commands is used to display your working directory?

1. dir
2. prompt $p$g
3. pwd
4. path

✅ Correct Answer: 3

Which command is used to display and create files?

1. cat
2. vi
3. ed
4. lyrix

✅ Correct Answer: 1

Which option will be used with touch command to change the access time?

1. a
2. b
3. t
4. h

✅ Correct Answer: 1

Which command is used to make all files and sub-directories in the directory (progs) executable by all users?

1. chmod -R a+x progs
2. chmod -R 222 progs
3. chmod -1 a+x progs
4. chmod -x a+x progs

✅ Correct Answer: 1

While working with mail command, which command is used to save mail in a separate file?

1. s
2. r
3. w
4. d

✅ Correct Answer: 1

The command used to compare the files is known as

1. comp
2. cmp
3. do
4. ccp

✅ Correct Answer: 2

Which command is used to terminate a process?

1. shutdown
2. haltsys
3. cancel
4. kill

✅ Correct Answer: 4

The cp command uses:

1. standard input file
2. standard output file
3. both input and output file
4. neither standard input nor standard output file

✅ Correct Answer: 4

🧪 Unix/Lunux MCQ Quiz Hub

Unix MCQS Set 1