Create an .env file following .env_example and fill it with your api keys
forge test --match-path test/<level name>.sol
Be careful when loading your private key to the environment!
Insert the target contract address in script/<level name>.s.sol
source .env
forge script script/<level name>.s.sol --rpc-url <network name> --broadcast --private-key $PRIVATE_KEY --tc <level name>AttackScript
for network names check [rpc_endpoints] aliases in foundry.toml