[Solved] Why does this script fail to run cleanup on exit?#!/bin/bash trap 'cleanup' EXIT cleanup() { echo "Cleaning up" } exit 0 | Bash Scripting

Bash Scripting - Error Handling

Why does this script fail to run cleanup on exit?

#!/bin/bash
trap 'cleanup' EXIT
cleanup() {
  echo "Cleaning up"
}
exit 0

Atrap command is correct, but cleanup is never called

Btrap command syntax is correct and script works as expected

Ctrap command quotes prevent function execution

Dcleanup function is defined after trap, so trap can't find it

Step-by-Step Solution

Solution:

Step 1: Understand function definition and trap timing
Functions can be defined after trap; trap runs commands on exit regardless.
Step 2: Confirm trap and function behavior
trap 'cleanup' EXIT runs cleanup on exit, so script prints "Cleaning up" before exit.
Final Answer:
trap command syntax is correct and script works as expected -> Option B
Quick Check:
trap runs commands on exit even if function defined later [OK]

Quick Trick: trap runs commands on exit regardless of function order [OK]

Common Mistakes:

MISTAKES

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