The following is a list of variables you can use for both
yum commands and
yum configuration files (i.e.
This is replaced with the package's version, as listed in
distroverpkg. This defaults to the version of the
This is replaced with your system's architecture, as listed by
os.uname() in Python.
This is replaced with your base architecture. For example, if
This is replaced with the value of the shell environment variable of the same name. If the shell environment variable does not exist, then the configuration file variable will not be replaced.