This is a Ruby gem for managing the body weight of Buncho.

% gem install buncho

To register a buncho's name, use the -n option.

% buncho -n yuki

If you specify only -n, it will just register the name without recording weight.
You can also combine -n and -w to register both name and weight at once:

% buncho -n yuki -w 25

You can record the weight using only the -w option.

% buncho -w 25

You can also register multiple birds.
If you try to record a weight without specifying a name, a list of choices will be displayed.

Example output:

% buncho -n yuki
% buncho -n sora
% buncho -w 26

Which buncho's data do you want to use? Enter the number.
1 sora
2 yuki

You can display the recorded weights.

% buncho -l