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1. Open a terminal application on your Revolution Pi or connect via SSH.

2. Navigate to the desired directory where you want to create the script using the cd <directory path> command. For example:

   Code Block
   language bash
   cd /home/pi/

3. Create a new empty file with your desired name and the ".sh" file extension using a text editor of your choice. For example:

   Code Block
   language bash
   nano static_pibridge_mac.sh

4. Copy the script code into nano Nano text editor.

   Code Block
   language bash
   #!/bin/bash if [[ $(id -u) != 0 ]]; then echo "usage: sudo $(basename $0)" exit 1 fi pibridge_static_mac() { interface=$1 if [[ $interface != "pileft" && $interface != "piright" ]]; then echo 2>&1 "interface is not a PiBridge interface: ${interface}" exit 3 elif [[ ! -e /sys/class/net/${interface} ]]; then echo 2>&1 "warning: network interface does not exists: ${interface}" fi mac=$(ip l show $interface | grep ether | xargs | cut -f 2 -d ' ' | sed -e 's/://g') mac_hi=${mac:0:8} mac_lo=${mac:8:12} grep -q dtparam=${interface}_mac_hi /boot/config.txt || echo "dtparam=${interface}_mac_hi=0x$mac_hi" >> /boot/config.txt grep -q dtparam=${interface}_mac_lo /boot/config.txt || echo "dtparam=${interface}_mac_lo=0x$mac_lo" >> /boot/config.txt } pibridge_static_mac pileft pibridge_static_mac piright

5. Save the script by pressing ⌨️ "Ctrl + X", followed by "Y" to save the file and "Enter" to exit the Nano text editor.

6. Enter the following command to make the script executable:

   Code Block
   language bash
   sudo codechmodchmod +x static_pibridge_mac.sh

   This grants the script execution permission.

7. To run the script, enter the following command:

   Code Block
   language bash
   ./static_pibridge_mac.sh

   This will start the script and execute the code.

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