FRR install script for Ubuntu/Debian

frr.sh

#!/bin/bash

# declare version
FRRVER="frr-stable"

# install prerequisites
sudo apt update && sudo apt install apt-transport-https gnupg

# add gpg key
curl -s https://deb.frrouting.org/frr/keys.asc | sudo apt-key add -

# add repository
echo deb https://deb.frrouting.org/frr $(lsb_release -s -c) $FRRVER | sudo tee -a /etc/apt/sources.list.d/frr.list

# update apt (gather repository locations)
sudo apt update

# install frr
sudo apt install frr frr-pythontools

# add user to frr group
sudo usermod -a -G frr $USER

# enter a new shell with the added group permissions
sudo su $USER

# enter frr config directory
cd /etc/frr/