download public peers

function download_peer_files() {
  31   │     declare DL
  32   │     declare europe_url america_url
  33   │     europe_url=$(echo "https://raw.githubusercontent.com/yggdrasil-network/public-peers/master/europe/"{czechia,finland,france,germany,netherlands,poland,romania,russia,slovakia,swe
       │ den,united-kingdom}".md")
  34   │     america_url=$(echo "https://raw.githubusercontent.com/yggdrasil-network/public-peers/master/north-america/"{canada,united-states}".md")
  35   │     if command -v wget >& /dev/null; then
  36   │         DL="wget -c --prefer-family=IPv4"
  37   │     elif command -v curl >& /dev/null; then
  38   │         DL="curl -O"
  39   │     else
  40   │         echo "ОШИБКА. wget или curl не найдены"
  41   │     fi
  42   │     echo "Скачиваем списки пиров"
  43   │     for jj in ${europe_url} ${america_url}
  44   │     do
  45   │         if $DL "${jj}" >& /dev/null; then
  46   │             echo "OK : ${jj}"
  47   │         else
  48   │             echo "FAIL : ${jj}"
  49   │         fi
  50   │     done
  51   │ }