[Solved] What is wrong with this bash script snippet that attempts to trap the EXIT signal?cleanup() { echo "Performing cleanup" } trap cleanup EXIT | Bash Scripting

Bash Scripting - Error Handling

What is wrong with this bash script snippet that attempts to trap the EXIT signal?

cleanup() {
  echo "Performing cleanup"
}
trap cleanup EXIT

AThe trap command is placed before the cleanup function is defined

BThe cleanup function must be exported to be used in trap

CThe EXIT signal cannot be trapped in bash

DThe trap command should use double quotes around cleanup

Step-by-Step Solution

Solution:

Step 1: Analyze the order of commands
The trap command references the cleanup function but does not quote it.
Step 2: Understand trap syntax
Commands in trap should be quoted to be executed properly; missing quotes cause trap to misinterpret the command.
Final Answer:
The trap command should use double quotes around cleanup -> Option D
Quick Check:
Commands in trap must be quoted [OK]

Quick Trick: Quote commands in trap to ensure proper execution [OK]

Common Mistakes:

MISTAKES

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