How can I tell if one of the commands between pipes gave an error?
by cesarsj from LinuxQuestions.org on (#579XJ)
How would I know if at least grep, or all commands that result in FD, were successfully executed?
FD=$(grep "Number of regular files transferred:" $TMP | sed 's/[^0-9]*//g' | awk 'NF{sum+=$1} END {print sum}');
FD=$(grep "Number of regular files transferred:" $TMP | sed 's/[^0-9]*//g' | awk 'NF{sum+=$1} END {print sum}');