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Linux-Systemd. Checking a Service Unit's Environment Variable
Mission
A systemd unit file can set environment variables in its [Service] section. Inspect the registered service definition and check the value configured there.
Not started
Hints
Hint 1Show
systemctl list-unit-files shows registered units
Hint 2Show
cat the unit files under /etc/systemd/system/ directly
Hint 3Show
Pay attention to the Environment= line in the [Service] section