[Solved] Identify the error in this script snippet:export VAR=hello function test() { VAR=world local VAR echo $VAR } test echo $VAR | Bash Scripting

Bash Scripting - Variables

Identify the error in this script snippet:

export VAR=hello
function test() {
  VAR=world
  local VAR
  echo $VAR
}
test
echo $VAR

Alocal must be declared before assigning VAR inside function

Bexport cannot be used outside functions

Cecho $VAR inside function will print empty

DFunction syntax is incorrect

Step-by-Step Solution

Solution:

Step 1: Understand local variable declaration order
In Bash, local VAR must appear before assigning a value to VAR inside the function to make it local.
Step 2: Analyze the script behavior
Here, VAR=world assigns to global VAR before local VAR is declared, so local VAR is empty and echo $VAR prints empty.
Final Answer:
local must be declared before assigning VAR inside function -> Option A
Quick Check:
Declare local before assignment inside functions [OK]

Quick Trick: Declare local variables before assigning values inside functions [OK]

Common Mistakes:

MISTAKES

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