hello Alex,
The following should do the trick without extending wc functionality:
SOME_COMMANDS | test "$(wc -l)" = YOUR_NUMBER
Proof of concept:
### { for n in {1..17}; do echo "$n"; done | test "$(wc -l)" = 17;
} && echo ZERO || echo NONZERO
ZERO
### { for n in {1..17}; do echo "$n"; done | test "$(wc -l)" = 18;
} && echo ZERO || echo NONZERO
NONZERO
Have a nice day!
Michael.
On 10/7/20, A B <[email protected]> wrote:
> I mean if you want to get picky about it and have this work exactly like
> grep -q, then you need to make the flag accept a threshold value, which it
> should match or exceed.
> So maybe: wc -l -q3
>
> That doesn’t have the same intuitive feel to me, but it wouldn’t violate the
> notion of how exit codes should be used either.
>
> -Alex Boese
--
Michael V. Antosha
