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| author | Frederic Crozat <fcrozat@suse.com> | 2013-01-24 18:06:00 +0100 |
|---|---|---|
| committer | Zbigniew Jędrzejewski-Szmek <zbyszek@in.waw.pl> | 2013-01-24 19:36:47 -0500 |
| commit | 0ae9c92a933869d5695396d067aa555dacbbba08 (patch) | |
| tree | f1af2ae5b09ade8590f269c65e6afa9413c731a6 /man | |
| parent | aa7cb2098302d45c8768ca08bf1e433a19aa46b9 (diff) | |
| download | systemd-0ae9c92a933869d5695396d067aa555dacbbba08.tar.gz | |
man: systemd.exec - explicit Environment assignment
Hi all,
while working on another bug, I discovered the "strange" way systemd is
parsing Environment= in .service and thought it was worth documenting
(because I don't expect people to find this syntax by themselves unless
they read the parsing code ;)
Be more verbose about using space in Environment field and not
using value of other variables
Fixes https://bugzilla.redhat.com/show_bug.cgi?id=840260
[zj: expand and reformat the example a bit]
Diffstat (limited to 'man')
| -rw-r--r-- | man/systemd.exec.xml | 19 |
1 files changed, 17 insertions, 2 deletions
diff --git a/man/systemd.exec.xml b/man/systemd.exec.xml index 8a22ac0138..a0fca5996b 100644 --- a/man/systemd.exec.xml +++ b/man/systemd.exec.xml @@ -286,9 +286,24 @@ empty string is assigned to this option the list of environment variables is reset, all prior - assignments have no effect. See + assignments have no effect. + Variable expansion is not performed + inside the strings, and $ has no special + meaning. + If you need to assign a value containing spaces + to a variable, use double quotes (") + for the assignment.</para> + + <para>Example: + <programlisting>Environment="VAR1=word1 word2" VAR2=word3 "VAR3=word 5 6"</programlisting> + gives three variables <literal>VAR1</literal>, + <literal>VAR2</literal>, <literal>VAR3</literal>. + </para> + + <para> + See <citerefentry><refentrytitle>environ</refentrytitle><manvolnum>7</manvolnum></citerefentry> - for details.</para></listitem> + for details about environment variables.</para></listitem> </varlistentry> <varlistentry> <term><varname>EnvironmentFile=</varname></term> |