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What does the trap command do in a bash script?

easy🧠 Conceptual Q1 of 15
Bash Scripting - Error Handling
What does the trap command do in a bash script?
AIt deletes temporary files automatically without user intervention
BIt pauses the script execution until user input is received
CIt runs specified commands when the script receives certain signals or exits
DIt creates a loop that repeats commands indefinitely
Step-by-Step Solution
Solution:
  1. Step 1: Understand the purpose of trap

    The trap command is used to catch signals or script exit events and run commands in response.
  2. Step 2: Identify the correct description

    Only It runs specified commands when the script receives certain signals or exits correctly describes trap's role in running commands on signals or exit.
  3. Final Answer:

    It runs specified commands when the script receives certain signals or exits -> Option C
  4. Quick Check:

    trap purpose = run commands on signals/exit [OK]
Quick Trick: trap runs commands on signals or exit events [OK]
Common Mistakes:
MISTAKES
  • Thinking trap pauses script execution
  • Confusing trap with loops
  • Assuming trap deletes files automatically

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