unrar ?

[exrector]

******r@MacBook-Pro-A Extract % ./install_extract.sh
Downloading extract.sh...
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
100  2908  100  2908    0     0  11740      0 --:--:-- --:--:-- --:--:-- 11773
Error: The following required utilities are missing:
 - unrar
Please install them before continuing.

Could you clarify which unrar and a link to it? There are too many options offered by google.
Thanks

[Chen1Plus]

Installing it using homebrew is an elegant solution.

If you don't need to extract .rar, you can manually copy the function into the rc file to bypass the error. (or use my installer script instead, which just remove the support when missing tools)