Update Golang version on Linux

Update Golang version on Linux

1. Remove old installation; default folder is /usr/local/go, but it may be different.

sudo rm -rf /usr/local/go

1. Download Go

wget -O golang.tar.gz https://storage.googleapis.com/golang/go1.9.linux-amd64.tar.gz

1. Extract the archive into /usr/local/go (or different folder - depends on your installation)

sudo tar -C /usr/local -xzf golang.tar.gz

1. Test if it's OK

go version