Running yes with more than one argument ignores other argument and does not print them.

Example:

./yes a b
a
a
a
..

Expected:

./yes a b
a b
a b
a b
..

This is different from both GNU binutils, uutils and bsdutils which print all arguments.

So I decided to package yes for Fedora and it definitely conflicts with coreutils' yes binary. Do you think I should use rust-yes binary name or yes-rs or ...? What about package name?

fill_up_buffer keeps doubling the amount it fills with each iteration, but this means that it doesn't fill up as much as it could.

For example, let's say the buffer size is 16 bytes, and the output slice is 3 bytes. fill_up_buffer will end up producing a 12-byte result when it could have produced a 15-byte result.

Incidentally, is doubling the buffer length over and over actually faster than just reading the output slice into the buffer repeatedly?

Does this compare at all to GNU's yes?

https://www.reddit.com/r/unix/comments/6gxduc/how_is_gnu_yes_so_fast/