#!/bin/bash
s='nvcc: NVIDIA (R) Cuda compiler driver
Copyright (c) 2005-2019 NVIDIA Corporation
Built on Wed_Oct_23_21:14:42_PDT_2019
Cuda compilation tools, release 10.2, V10.2.89'
awk '/Cuda compilation/{sub(/,$/,"", $5); print $5}' <<< "$s"