[lug] Environment variable expansion in systemd service files

[Zan Lynx]

On 02/28/2017 05:16 PM, Chris Riddoch wrote:
> Zan, I had kind of expected that variables would be defined in the order
> they're seen in the file,

Yeah but unit files can be modified by unit file fragments and those can
be found in various directories.

This bit has a pretty good explanation:
https://www.digitalocean.com/community/tutorials/how-to-use-systemctl-to-manage-systemd-services-and-units#editing-unit-files

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