I'm trying to run brew install unrar on mac os Big Sur and I'm getting the following error:
Updating Homebrew...
==> Auto-updated Homebrew!
Updated 1 tap (homebrew/cask).
==> Updated Casks
Updated 1 cask.
==> Searching for similarly named formulae...
Error: No similarly named formulae found.
Error: No available formula or cask with the name "unrar".
==> Searching for a previously deleted formula (in the last month)...
Error: No previously deleted formula found.
==> Searching taps on GitHub...
Error: No formulae found in taps.
Please advise on how I can resolve this.