Re: How to make `read` fail if there is not enough fields in the input?

[Peng Yu]

>> I’d like to know whether there is enough field in a TSV row. But the status 
>> code does not return an error code. Is there a way to let read return 
>> non-zero if there is not enough fields? Thanks.
>> 
>> $ IFS=$'\t' read -r x y <<< x
>> $ echo $?
>> 0
> 
> $ IFS=$'\t' read -r -a array <<< x && (( "${#array[@]}" == 2 ))
> $ echo $?
> 1
> $ IFS=$'\t' read -r -a array <<< x$'\t'y && (( "${#array[@]}" == 2 ))
> $ echo $?
> 0
> 

But this is too verbose. I also want to directly refer to x and y rather than 
the array. Anything as succinct as the original bash code?

Regards,
Peng