How to get output of piped process?

[frame]

On Thursday, 18 February 2021 at 06:04:13 UTC, Jedi wrote:

>> Unfortunately, std.process wraps all the pipes in File 
>> structs, so you have almost no good mechanisms to properly 
>> read the data.
>>
> WTF?
>
>> -Steve

I'm wonder about this message. You can always use readln() and 
eof() on such kind of streams. byLine() is just not the best 
option here.