Shell Scripting XK0-006 Practice Questions (Page 3)

Questions 11–15

1. 11foundation · easy

   What is the output of the command `echo $((10 / 3))` in Bash?

   • A3.33
   • BAn error
   • C3.333333
   • D3
   Reveal Solution Discussion Select an answer first
2. 12application · easy

   A script defines a function that prints a greeting. The function should accept a name as an argument and print "Hello, <name>!". Which function definition correctly implements this?

   • A`greet() { echo "Hello, $#!"; }`
   • B`greet() { echo "Hello, $1!"; }`
   • C`greet() { echo "Hello, $@!"; }`
   • D`greet() { echo "Hello, $0!"; }`
   Reveal Solution Discussion Select an answer first
4. 13foundation · easy

   What is the output of the following command? `echo "${var:-default}"` when the variable 'var' is unset?

   • AAn error message
   • B${var:-default}
   • Cdefault
   • DAn empty line
   Reveal Solution Discussion Select an answer first
5. 14foundation · medium

   A shell script contains the line: `my_var=42`. Which statement about this line is correct?

   • AIt fails because variable names cannot contain underscores.
   • BIt assigns the integer value 42 to the variable my_var.
   • CIt assigns the string "42" to the variable my_var.
   • DIt declares my_var as an integer and assigns 42 to it.
   Reveal Solution Discussion Select an answer first
6. 15foundation · easy

   Which command is used to exit a script immediately with a specific exit status?

   • Aexit 1
   • Bquit 1
   • Creturn 1
   • Dbreak 1
   Reveal Solution Discussion Select an answer first