sed "."を脱出して$variableを使用しますか？

私はこの回避を理解していません。発電機はありますか？

プレーンテキスト（185...）を$ NEW_DNS変数に置き換える必要があります。

sed -i "185.228.168.168,185.228.169.168|$NEW_DNS /etc/wireguard/wg0.conf

出力

sed: -e expression #1, char 4: unknown command: `.'

更新：回答を確認して機能してください。 /etc/wireguard/wg0.confが新しいデータで書き換えられていないことです（ただし、出力は正しいです）。

# client start menu
echo "What can i do for you today? "
options=("Show Clients" "Show your DNS Server" "Change your DNS Server" "Install/add new Client" "Quit")
select opt in "${options[@]}"
do
    case $opt in
        "Show Clients")
            ls *.conf
            ;;
            "Show your DNS Server")
            if [ $( head -n1 $CONF | awk '{print $5}') == "1.1.1.1,1.0.0.1" ]; then
                echo "Your Public DNS Server is Cloudflare (1.1.1.1,1.0.0.1), great unfiltered choice for best speed worldwide! "
            fi
               if [ $( head -n1 $CONF | awk '{print $5}') == "176.103.130.130,176.103.130.131" ]; then
                echo "Your Public DNS Server is Adguard (176.103.130.130,176.103.130.131), Advertising Filter kill them all! "
            fi
               if [ $( head -n1 $CONF | awk '{print $5}') == "84.200.69.80,84.200.70.40" ]; then
                echo "Your Public DNS Server is WATCH.DNS (84.200.69.80,84.200.70.40), great unfiltered choice for German Clients! "
            fi
               if [ $( head -n1 $CONF | awk '{print $5}') == "9.9.9.9, 149.112.112.112" ]; then
                echo "Your Public DNS Server is QUAD9 (9.9.9.9, 149.112.112.112), great TLS encrypted unfiltered choice! "
            fi
               if [ $( head -n1 $CONF | awk '{print $5}') == "77.88.8.7,77.88.8.3" ]; then
                echo "Your Public DNS Server is Yandex (77.88.8.7,77.88.8.3), safe choice with Family Filter! "
            fi
               if [ $( head -n1 $CONF | awk '{print $5}') == "185.228.168.168,185.228.169.168" ]; then
                echo "Your Public DNS Server is Clean Browsing (185.228.168.168,185.228.169.168), Uuh TLS encrypted safe choice with Family Filter and Youtube-Safe Option! "
                fi
               if [ $( head -n1 $CONF | awk '{print $5}') == "10.8.0.1" ]; then
                echo "Nothing else then own encrypted and logless dedicated DNS Server! "
                 fi
                 ;;
            "Change your DNS Server")
             if [ $( head -n1 $CONF | awk '{print $5}') == "1.1.1.1,1.0.0.1" ]; then
                 echo "Your Public DNS Server is Cloudflare (1.1.1.1,1.0.0.1), great unfiltered choice for best speed worldwide! "
             fi
               if [ $( head -n1 $CONF | awk '{print $5}') == "176.103.130.130,176.103.130.131" ]; then
                 echo "Your Public DNS Server is Adguard (176.103.130.130,176.103.130.131), Advertising Filter kill them all! "
             fi
               if [ $( head -n1 $CONF | awk '{print $5}') == "84.200.69.80,84.200.70.40" ]; then
                 echo "Your Public DNS Server is WATCH.DNS (84.200.69.80,84.200.70.40), great unfiltered choice for German Clients! "
             fi
               if [ $( head -n1 $CONF | awk '{print $5}') == "9.9.9.9, 149.112.112.112" ]; then
                 echo "Your Public DNS Server is QUAD9 (9.9.9.9, 149.112.112.112), great TLS encrypted unfiltered choice! "
             fi
               if [ $( head -n1 $CONF | awk '{print $5}') == "77.88.8.7,77.88.8.3" ]; then
                 echo "Your Public DNS Server is Yandex (77.88.8.7,77.88.8.3), safe choice with Family Filter! "
             fi
               if [ $( head -n1 $CONF | awk '{print $5}') == "185.228.168.168,185.228.169.168" ]; then
                      echo "Your want leave your Clean Browsing server and use another one?. You need generate new configs later, if you want to use new Server (Start Menu choice: 3 ) "
                      # client choice NEW DNS
                          read -rp "Do you really want to change your DNS Server? (y/n) " -e -i y NEW_DNS
                            if [ "$NEW_DNS" == "y" ]; then
                              echo "Which DNS do you want to use with the VPN?"
                                echo "You recognise encrypted DNS with "TLS" (Port 853 can be potentially blocked through Government etc.) Some Servers use logs, but no one of them log aWireguard IP. "
                              echo "   1) Cloudflare: log: yes 24h, Filter: no, + best speed worldwide"
                              echo "   2) AdGuard: Log: yes, Filter: advertising"
                              echo "   3) DNS.WATCH: Log: no, Filter: no, + great speed for Germany"
                              echo "   4) Quad9: TLS: yes, Log: yes, Filter: no"
                              echo "   5) Yandex Family: TLS:no, Log: yes, Filter: adult"
                              echo "   6) Clean Browsing Family: TLS: yes, Log: yes, Filter: adult and explicit sites, Youtube- safe mode"
                              read -p "DNS [1-6]: " -e -i 1 NEW_DNS

                              case $NEW_DNS in
                                  1)
                                      NEW_DNS="1.1.1.1,1.0.0.1"
                                  ;;
                                  2)
                                  NEW_DNS="176.103.130.130,176.103.130.131"
                                  ;;
                                  3)
                                  NEW_DNS="84.200.69.80,84.200.70.40"
                                  ;;
                                  4)
                                  NEW_DNS="9.9.9.9, 149.112.112.112"
                                  ;;
                                  5)
                                  NEW_DNS="77.88.8.7,77.88.8.3"
                                  ;;
                                  6)
                                  NEW_DNS="185.228.168.168,185.228.169.168"
                                  ;;
                              esac
                            fi
                      # EOF client choices DNS
                fi
                sed "s/185\.228\.168\.168,185\.228\.169\.168/$NEW_DNS/" /etc/wireguard/wg0.conf
               if [ $( head -n1 $CONF | awk '{print $5}') == "10.8.0.1" ]; then
                 echo "Nothing else then own encrypted and logless dedicated DNS Server! "
                 fi
                 ;;
        "Install/add new Client")
            break
            ;;
        "Quit")
              exit
            ;;
    esac
done