Install package golang

The golang Debian package may have already made its way into your Ubuntu distribution. Try this:

   sudo apt-get install golang

If that didn't work

If you have an arm, i386, or amd64, with the Ubuntu Lucid, Maverick, Natty, Oneiric, or Precise release, you can easily install Go 1 right now as a package by running:

   sudo add-apt-repository ppa:gophers/go
   sudo apt-get update
   sudo apt-get install golang-stable

(If you don't have add-apt-repository, run “sudo apt-get install python-software-properties”.)

The golang-stable package includes everything necessary for developing with Go. There are also golang-tip and golang-weekly packages in the same repository, and these are up-to-date, except golang-weekly isn't really interesting at the moment since golang-stable is more recent.