105.2 Customize or Write Simple Scripts LPIC-1 Practice Questions (Page 5)

Questions 21–25

1. 21foundation · easy

   Which shell built-in command is used to evaluate a conditional expression?

   • Acheck
   • Btest
   • Cexpr
   • Deval
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2. 22application · easy

   A script defines a function that takes two arguments and prints them. The function is called with three arguments. How many arguments does the function see?

   • A1
   • B0
   • C3
   • D2
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4. 23foundation · easy

   Which shell built-in command is used to read a line of input from the user?

   • Ainput
   • Bscan
   • Cread
   • Dgetline
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5. 24application · medium

   A script defines a function that should compute the sum of two integers passed as arguments and return the result to the caller. Which function definition correctly returns the computed value?

   • Asum() { echo $(( $1 + $2 )); }
   • Bsum() { result=$(( $1 + $2 )); }
   • Csum() { $(( $1 + $2 )); }
   • Dsum() { return $(( $1 + $2 )); }
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6. 25foundation · medium

   Which of the following is a valid standard shell syntax construct that will iterate over the positional parameters of a script?

   • Afor arg = "$@"; do echo "$arg"; done
   • Bwhile arg in "$@"; do echo "$arg"; done
   • Cforeach arg ("$@"); echo "$arg"; end
   • Dfor arg in "$@"; do echo "$arg"; done
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