goinst.sh

#!/usr/bin/env bash
#
# Example usage:
#
# $ VERSION=1.2.2 sudo ./goinst.sh

if [ "$(id -u)" != "0" ]; then
   echo "This script must be run as root" 1>&2
   exit 1
fi

test "$VERSION" || VERSION=1.2.2

set -ex

TDIR=`mktemp -d`

trap "{ cd - ; rm -rf $TDIR; exit 255; }" SIGINT

cd $TDIR

wget https://storage.googleapis.com/golang/go$VERSION.linux-amd64.tar.gz

rm -rf /usr/local/go
tar -C /usr/local -xzf go$VERSION.linux-amd64.tar.gz
echo 'export GOPATH=~/dev/gocentral' >> ~/.bashrc
echo 'export PATH=$PATH:$GOPATH/bin' >> ~/.bashrc

export GOPATH=~/dev/gocentral
echo "export GOPATH=$GOPATH" > /etc/profile.d/golang.sh
echo "export PATH=/usr/local/go/bin:\$PATH:$GOPATH/bin" >> /etc/profile.d/golang.sh
cd -
rm -rf $TDIR