This question was asked by a user trying to debug a problem with Java services
which required JAVA_HOME to be set.
---
man/systemd.exec.xml | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/man/systemd.exec.xml b/man/systemd.exec.xml
index c0e1d86..b78f255 100644
--- a/man/systemd.exec.xml
+++ b/man/systemd.exec.xml
@@ -77,6 +77,13 @@
configuration options are configured in the [Service],
[Socket], [Mount], or [Swap] sections, depending on the unit
type.</para>
+
+ <para>All processes are executed in a clean environment in
+ which only the TERM, PATH, USER, and HOME variables are set
+ by default. In order to set additional variables, see the
+ Environment= and EnvironmentFile= options below. To specify
+ variables globally, you can configure DefaultEnvironment= in
+
<citerefentry><refentrytitle>systemd-system.conf</refentrytitle><manvolnum>5</manvolnum></citerefentry>.</para>
</refsect1>
<refsect1>
--
1.8.3.4
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