Install golang on ubuntu 16.04

install-go.sh

#!/bin/bash

# run => bash <script>

if [[ $EUID -ne 0 ]]; then
        echo "Please run as root"
        exit 100
fi

# updating package & upgrade security
apt-get update -y
apt-get upgrade -y


# get go installation
wget https://dl.google.com/go/go1.11.4.linux-amd64.tar.gz

# processing go installation
tar -xvf go1.11.4.linux-amd64.tar.gz
mv go /usr/local

# setting GOROOT
export GOROOT=/usr/local/go

# setting GOPATH
mkdir ~/go && export GOPATH=$HOME/go

# make go accesible globally
export PATH=$GOPATH/bin:$GOROOT/bin:$PATH

# verify go installation with checking version and env variable
go version
go env