gistfile1.sh

#!/bin/bash
# How to exit if any command in a bash subshell fails with piping all output
set -o pipefail
(
set -o errexit;
echo -n "T"; 
# false;
echo -n "e";
# false;
echo -n "s";
 false;
echo -n "t";
# false;
) 2>&1 | cat
subshell_rv=$?
echo " " 
echo "Returned subshell_rv: $subshell_rv"