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man: add more detail about quoting in ExecStart lines

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Fixes #624.
This commit is contained in:
Zbigniew Jędrzejewski-Szmek 2017-06-28 22:29:41 -04:00
parent 2b015ea4b2
commit fa0c9e6315
1 changed files with 8 additions and 6 deletions
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14
man/systemd.service.xml
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@ -916,12 +916,14 @@
<para>Each command line is split on whitespace, with the first item being the command to
execute, and the subsequent items being the arguments. Double quotes ("…") and single quotes
('…') may be used, in which case everything until the next matching quote becomes part of the
same argument. Quotes themselves are removed. C-style escapes are also supported. The table
below contains the list of known escape patterns. Only escape patterns which match the syntax in
the table are allowed; other patterns may be added in the future and unknown patterns will
result in a warning. In particular, any backslashes should be doubled. Finally, a trailing
backslash (<literal>\</literal>) may be used to merge lines.</para>
('…') may be used to wrap a whole item (the opening quote may appear only at the beginning or
after whitespace that is not quoted, and the closing quote must be followed by whitespace or the
end of line), in which case everything until the next matching quote becomes part of the same
argument. Quotes themselves are removed. C-style escapes are also supported. The table below
contains the list of known escape patterns. Only escape patterns which match the syntax in the
table are allowed; other patterns may be added in the future and unknown patterns will result in
a warning. In particular, any backslashes should be doubled. Finally, a trailing backslash
(<literal>\</literal>) may be used to merge lines.</para>
<para>This syntax is inspired by shell syntax, but only the meta-characters and expansions
described in the following paragraphs are understood, and the expansion of variables is