After the program is compiled, there's one more important step: installation. Although the program is compiled, it's not yet ready
for use. All its components
need to be copied from the source directory to the correct "live" locations on your filesystem. For
example, all binaries need to be copied to /usr/local/bin, and all man
pages need to be installed into /usr/local/man, etc.
Before you can install the software, you'll need to become root.
This is typically done by either logging in as root on a separate
terminal or typing "su," at which point you'll be prompted for
root's password. After typing it in, you'll have root privileges
until you exit from your current shell session by typing "exit" or
hitting control-D. If you're already root, you're ready to go!