sorry newb question how to use that i already extract and and got 2 file miner and readme then i open terminal and change directory to folder with miner inside and type this ./miner --server eu1-zcash.flypool.org:3333 --user t1NF6yLUxAAttibU8mzfX86o8aWLcqF38DX.rig1 --pass x --port 3333 --cuda_devices 0 1 2 3 but got ./miner: Permission denied

idk what should i do, i dont see any guide in first post,