Question 1

On executing a statement set -3+1

Accepted Answer

A) $1 would be -3 
B) $1 would be - 
C) $1 would be set 
D) this command would result into an error 
A) $1 would be -3 
B) $1 would be - 
C) $1 would be set 
D) this command would result into an error D

Question 2

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

Accepted Answer

A) cat emp[!0-9] 
B) more [emp][!0-9] 
C) cat emp[x-z] 
D) cat emp[a-z] 
A) cat emp[!0-9] 
B) more [emp][!0-9] 
C) cat emp[x-z] 
D) cat emp[a-z] A

Question 3

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

Accepted Answer

A) s 
B) s. 
C) r 
D) c 
A) s 
B) s. 
C) r 
D) c B

Question 4

The break statement is used to exit from

Accepted Answer

A) an if statement 
B) a for loop 
C) a program 
D) none of the above 
A) an if statement 
B) a for loop 
C) a program 
D) none of the above

Question 5

The statement z='expr 5/2' would store in z a value

Accepted Answer

A) 2.5 
B) 3 
C) 2 
D) 0 
A) 2.5 
B) 3 
C) 2 
D) 0

Question 6

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

Accepted Answer

A) chmodgo+r note 
B) chmodgo+rw note 
C) chmod go-x note 
D) chmod go-r, 4-x note 
A) chmodgo+r note 
B) chmodgo+rw note 
C) chmod go-x note 
D) chmod go-r, 4-x note

Question 7

Which of the following is allowed in an arithmetic statement involving exprinstruction

Accepted Answer

A) [] 
B) {} 
C) () 
D) none of the above 
A) [] 
B) {} 
C) () 
D) none of the above

Question 8

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

Accepted Answer

A) cat 
B) cut 
C) grep 
D) paste 
A) cat 
B) cut 
C) grep 
D) paste

Question 9

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

Accepted Answer

A) $! 
B) $# 
C) $0 
D) $* 
A) $! 
B) $# 
C) $0 
D) $*

Question 10

Which option will be used with ps command to slow the entire command line of the process being run?

Accepted Answer

A) -4 
B) -f 
C) -1 
D) -4. 
A) -4 
B) -f 
C) -1 
D) -4.

Question 11

The expression expr -2 % 7 evaluates to

Accepted Answer

A) 2 
B) -2 
C) 0 
D) 0.285 
A) 2 
B) -2 
C) 0 
D) 0.285

Question 12

Which of the following shows the correct hierarchy of arithmetic operations in shell

Accepted Answer

A) (),**,* or /, + or - 
B) (), **, *,/,+,- 
C) (),**,/,*,+,- 
D) (),/,% or *,- or + 
A) (),**,* or /, + or - 
B) (), **, *,/,+,- 
C) (),**,/,*,+,- 
D) (),/,% or *,- or +

Question 13

Which command is used to terminate a process

Accepted Answer

A) shutdown 
B) haltsys 
C) cancel 
D) kill 
A) shutdown 
B) haltsys 
C) cancel 
D) kill

Question 14

Hierarchy decides which operator

Accepted Answer

A) is most important 
B) is used first 
C) is fastest 
D) operates on largest numbers 
A) is most important 
B) is used first 
C) is fastest 
D) operates on largest numbers

Question 15

The expression expr -7 % 2evaluates to

Accepted Answer

A) 1 
B) -1 
C) -3.5 
D) 0 
A) 1 
B) -1 
C) -3.5 
D) 0

Question 16

An until loop ensures that the statement within the loop get executed

Accepted Answer

A) only once 
B) atleast once 
C) not even once 
D) none of the above 
A) only once 
B) atleast once 
C) not even once 
D) none of the above

Question 17

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

Accepted Answer

A) :pat. 
B) :pat 
C) /pat 
D) all of the above 
A) :pat. 
B) :pat 
C) /pat 
D) all of the above

Question 18

Which option will be used with sort command to start sorting after the nth column of the (m+1)th field

Accepted Answer

A) -m.n 
B) +m.n 
C) +n.m+1 
D) +(m+1).n 
A) -m.n 
B) +m.n 
C) +n.m+1 
D) +(m+1).n

Question 19

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

Accepted Answer

A) write 
B) mail 
C) wall 
D) mesg 
A) write 
B) mail 
C) wall 
D) mesg

Question 20

On executing the command Shift $v

Accepted Answer

A) the positional parameters would be shifted by the value of the variable v 
B) the positional parameters would be shifted by 1 
C) the positional parameters would not be shifted at all 
D) this command would result into an error 
A) the positional parameters would be shifted by the value of the variable v 
B) the positional parameters would be shifted by 1 
C) the positional parameters would not be shifted at all 
D) this command would result into an error

On executing a statement set -3+1

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

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

The break statement is used to exit from

The statement z='expr 5/2' would store in z a value

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

Which of the following is allowed in an arithmetic statement involving exprinstruction

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

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

Which option will be used with ps command to slow the entire command line of the process being run?

The expression expr -2 % 7 evaluates to

Which of the following shows the correct hierarchy of arithmetic operations in shell

Which command is used to terminate a process

Hierarchy decides which operator

The expression expr -7 % 2evaluates to

An until loop ensures that the statement within the loop get executed

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

Which option will be used with sort command to start sorting after the nth column of the (m+1)th field

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

On executing the command Shift $v

Introduction to Unix Operating System and Shell Programming

Unix Commands and Functions: Part A

Common Linux Commands and File Operations

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Exam 3: Unix Commands and Functions: Part B

On executing a statement set -3+1

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

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

The break statement is used to exit from

The statement z='expr 5/2' would store in z a value

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

Which of the following is allowed in an arithmetic statement involving exprinstruction

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

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

Which option will be used with ps command to slow the entire command line of the process being run?

The expression expr -2 % 7 evaluates to

Which of the following shows the correct hierarchy of arithmetic operations in shell

Which command is used to terminate a process

Hierarchy decides which operator

The expression expr -7 % 2evaluates to

An until loop ensures that the statement within the loop get executed

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

Which option will be used with sort command to start sorting after the nth column of the (m+1)th field

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

On executing the command Shift $v

Introduction to Unix Operating System and Shell Programming

Unix Commands and Functions: Part A

Common Linux Commands and File Operations

Filters