Just a quick and fun script to somewhat automate the process for ugprading from one NixOS release to the next

#!/usr/bin/env bash

user=$(whoami)
current=$(sudo nix-channel --list | cut -d "-" -f2)

if [ $user != 'root' ];
then
    echo "Please run script as root user"
else
    echo Current System Version: $current
    read -r -p "What version of NixOS are you upgrading to? " usrIn
    nix-channel --add https://channels.nixos.org/nixos-"$usrIn" nixos
fi