tail-pipe-corrupts-exit-code-verification

When checking script exit codes by piping through tail (e.g., python3 script.py | tail -20; echo $?), the $? reflects tail’s exit code, not the script’s. This caused a false audit finding that lint scripts exited 0 on failure — they were actually correct. Use ${PIPESTATUS[0]} or capture exit code before the pipe: python3 script.py > out.txt; echo $?; tail out.txt.

Related

• pipe-tail-corrupts-exit-code-verification
• piped-tail-masks-script-exit-code
• pipe-tail-masks-script-exit-code
• pipe-tail-captures-tail-exit-not-script-exit
• vault-cli-exit-zero-on-tool-validation-errors
• pipe-through-tail-masks-script-exit-code