This Tutorial is for 20.04, but should be similar for other ubuntu versions

1. Downloading the Go tarball (assume the version is 1.14.2)

sudo wget -c https://dl.google.com/go/go1.14.2.linux-amd64.tar.gz -O - | sudo tar -xz -C /usr/local

2. Adjusting the Path Variable

export PATH=$PATH:/usr/local/go/bin

or add it to start up script

# append to ~/.bashrc
export PATH=$PATH:/usr/local/go/bin

# then
source ~/.bashrc

3. Verifying the Go Installation

go version

more information of how to use go, please checkout

https://golang.org/doc/code#Workspaces