### Replace the default sources.list file
-To replace the default `/etc/apt/sources.list` file on standard Ubuntu machines:
+The following example replaces the default `/etc/apt/sources.list`. Along with this code, be sure to use the `purge` parameter, or you might get duplicate source warnings when running Apt.
```puppet
apt::source { "archive.ubuntu.com-${lsbdistcodename}":
* `release`: *Optional if lsb-release is installed (unless you're using a different release than indicated by lsb-release, e.g., Linux Mint).* Specifies the operating system of your node. Valid options: a string containing a valid LSB distribution codename. Default: "$lsbdistcodename".
-#### Defined Type: `apt:setting`
+#### Defined Type: `apt::setting`
Manages Apt configuration files.