WiFiRetriesTerminalGraph

WiFiTermGraph

# In one terminal run the below (ensuring you have *wireshark/tshark* installed)... 
# or you can backround the process too of course with '&' or 'screen'...
# but remember this will put your OSX radio in monitor mode until you stop the process :)

/usr/local/bin/tshark -q -i en1 -I -y IEEE802_11_RADIO -Tfields -e wlan.fc.retry > retries.dat


# In another terminal run the following (or create a script file) + ensure you have *gnuplot* installed :)

while true ; do tail -n 200 retries.dat | gnuplot -e "set term dumb size 100,40; set yrange [0:1.5]; plot '-' with linespoints" ; sleep 1 ; done

# And your output should look like this:


      +--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+
      +        +        +        +        +        +        +        +        +      '-' **A*** +
  1.4 ++                                                                                       ++
      |                                                                                         |
      |                                                                                         |
      |                                                                                         |
      |                                                                                         |
  1.2 ++                                                                                       ++
      |                                                                                         |
      |                                                                                         |
      |                                                                                         |
      |                                                                                         |
    1 ++                 A  A                            A    A  A  AA     A       A   A   A   ++
      |                  *  *                            *    *  *  **     *       *   *   *    |
      |                  *  *                            *    *  *  **     *       *   *   *    |
      |                  *  *                            *    *  *  **     *       *   *   *    |
  0.8 ++                 *  *                            *    *  *  **     *       *   *   *   ++
      |                  *  *                            *    *  *  **     *       *   *   *    |
      |                  *  *                            *    *  *  **     *       *   *   *    |
      |                  *  *                            *    *  *  **     *       *   *   *    |
      |                  *  *                            *    *  *  **     *       *   *   *    |
  0.6 ++                 *  *                            *    *  *  **     *       *   *   *   ++
      |                  *  *                            *    *  *  **     *       *   *   *    |
      |                  *  *                            *    *  *  **     *       *   *   *    |
      |                 * ** *                          * *  * * ***  *   * *      ** * * * *   |
      |                 * ** *                          * *  * * ***  *   * *      ** * * * *   |
  0.4 ++                * ** *                          * *  * * ***  *   * *      ** * * * *  ++
      |                 * ** *                          * *  * * ***  *   * *      ** * * * *   |
      |                 * ** *                          * *  * * ***  *   * *      ** * * * *   |
      |                 * ** *                          * *  * * ***  *   * *      ** * * * *   |
  0.2 ++                * ** *                          * *  * * ***  *   * *      ** * * * *  ++
      |                 * ** *                          * *  * * ***  *   * *      ** * * * *   |
      |                 * ** *                          * *  * * ***  *   * *      ** * * * *   |
      |                 * ** *                          * *  * * ***  *   * *      ** * * * *   |
      +        +        * ** *   +        +        +    * * +* * *** +*   * * +    ** *+* * *   +
    0 AAAAAAAAAAAAAAAAAAA-AA-AAAAAAAAAAAAAAAAAAAAAAAAAAAA-AAAA-AAAAA-+AAAAA-AAAAAAAAAAA+AAA-AAAA+
      0        10       20       30       40       50       60       70       80       90      100
      
# For bonus points try piping your graphs through 'lolcat' or make a percent counter and pass
# it through 'figlet' and 'localcat' :)

while true ; do tail -n 100 retries.dat | grep 1 | wc -l | awk '{print $1" %  Retries"}' | figlet -ck | lolcat ; sleep 1 ; done