$ help set ... -e Exit immediately if a command exits with a non-zero status. -E If set, the ERR trap is inherited by shell funct

$ help set ... -e Exit immediately if a command exits with a non-zero status. -E If set, the ERR trap is inherited by shell functions. -u Treat unset variables as an error when substituting. -o option-name Set the variable corresponding to option-name: pipefail the return value of a pipeline is the status of the last command to exit with a non-zero status, or zero if no command exited with a non-zero status