[Solved] What does the set -o pipefail command do in a bash script? - Ans: It makes the pipeline return the exit status of the last failed command. | Bash Scripting

Bash Scripting - Error Handling

What does the set -o pipefail command do in a bash script?

AIt makes the pipeline return the exit status of the last failed command.

BIt disables all error checking in the script.

CIt forces the script to ignore errors in pipelines.

DIt restarts the pipeline if any command fails.

Step-by-Step Solution

Solution:

Step 1: Understand pipeline exit status behavior
Normally, a pipeline returns the exit status of the last command only, ignoring failures in earlier commands.
Step 2: Effect of set -o pipefail
This option changes the pipeline's exit status to that of the last failed command, making error detection more reliable.
Final Answer:
It makes the pipeline return the exit status of the last failed command. -> Option A
Quick Check:
Pipeline failure detection = It makes the pipeline return the exit status of the last failed command. [OK]

Quick Trick: Remember: pipefail catches failures anywhere in a pipeline [OK]

Common Mistakes:

MISTAKES

Master "Error Handling" in Bash Scripting

9 interactive learning modes - each teaches the same concept differently

More Bash Scripting Quizzes

What does the set -o pipefail command do in a bash script?