Case and Expr Command MCQ

Test your knowledge with important Case and Expr Command MCQ and their applications. These MCQs are beneficial for competitive exams too. Explore 30 + more Case and Expr Command MCQs at Bissoy

• expr is a _____ command
  ক

  internal

  খ

  external

  গ

  shell

  ঘ

  derived
• For locating the first position of a character in a string we can use expr command.
  ক

  True

  খ

  False
• Which of the following pattern is used for extracting a substring using expr?
  ক

  /( )

  খ

  \(. .\)

  গ

  . .\)

  ঘ

  \\(
• Which symbol is used for finding the length of the string?
  ক

  .

  খ

  *

  গ

  .*

  ঘ

  .*.
• The string to be worked upon is placed on the left of the colon when using expr string handling function.
  ক

  True

  খ

  False
• Which of the following is performed by expr string handling’s function?
  ক

  determine the length of string

  খ

  extract a substring

  গ

  locate the position of a character in a string

  ঘ

  determine the length of string, extract and locate the position of the string
• expr can perform ____ arithmetic operations.
  ক

  2

  খ

  4

  গ

  5

  ঘ

  3
• Which command is used for computation and string handling?
  ক

  expr

  খ

  case

  গ

  if

  ঘ

  read
• case can also use wildcards to pattern matching.
  ক

  True

  খ

  False
• case can also be used for matching multiple patterns.
  ক

  True

  খ

  False
• The ___ option in case statement matches any option not matched by the previous options.
  ক

  ^

  খ

  $

  গ

  *

  ঘ

  //
• case statement should have a corresponding closing esac.
  ক

  True

  খ

  False
• Every pattern in case statement in terminated with a _____
  ক

  ;

  খ

  :

  গ

  ;;

  ঘ

  //
• ____ statement matches an expression for more than one alternative.
  ক

  for

  খ

  while

  গ

  elif

  ঘ

  case