Connect to Wifi networks using network manager listed by fzf

nm-wifi-fzf.sh

    wl(){
      local ssid
      local conn

      nmcli device wifi rescan > /dev/null
      ssid=$(nmcli device wifi list | tail -n +2 | grep -v '^  *\B--\B' | fzf -m | sed 's/^ *\*//' | awk '{print $1}')

      if [ "x$ssid" != "x" ]; then
        # check if the SSID has already a connection setup
        conn=$(nmcli con | grep "$ssid" | awk '{print $1}' | uniq)
        if [ "x$conn" = "x$ssid" ]; then
          echo "Please wait while switching to known network $ssid…"
          # if yes, bring up that connection
          nmcli con up id "$conn"
        else
          echo "Please wait while connecting to new network $ssid…"
          # if not connect to it and ask for the password
          nmcli device wifi connect "$ssid"
        fi
      fi
    }