Error detection is much easier with pipefail: http://www.gnu.org/software/bash/manual/html_node/Pipelines.html http://www.gnu.org/software/bash/manual/html_nod

Error detection is much easier with pipefail: http://www.gnu.org/software/bash/manual/html_node/Pipelines.html http://www.gnu.org/software/bash/manual/html_node/Pipelines.... "If pipefail is enabled, the pipeline’s return status is the value of the last (rightmost) command to exit with a non-zero status, or zero if all commands exit successfully"