#!/bin/bash

function __remove-cask {
    caskBasePath="/opt/homebrew-cask/Caskroom"
    local cask="$1"
    local caskDirectory="$caskBasePath/$cask"
    local versionsToRemove="$(ls -r $caskDirectory | sed 1,1d)"
    if [[ -n $versionsToRemove ]]; then
        while read versionToRemove ; do
            echo "Removing $cask $versionToRemove..."
            rm -rf "$caskDirectory/$versionToRemove"
        done <<< "$versionsToRemove"
    fi
}

while read cask; do
    __remove-cask "$cask"
done <<< "$(brew cask list)"