if [[ $INVOCATION_ID ]]; then
# INVOCATION_ID means running as a systemd service. we cant show progress in this case,
# but if we pass the arg, it will insert mbuffer into the command.
if [[ $INVOCATION_ID ]]; then
# INVOCATION_ID means running as a systemd service. we cant show progress in this case,
# but if we pass the arg, it will insert mbuffer into the command.