diff options
Diffstat (limited to 'man/systemd-sysusers.xml')
| -rw-r--r-- | man/systemd-sysusers.xml | 61 |
1 files changed, 52 insertions, 9 deletions
diff --git a/man/systemd-sysusers.xml b/man/systemd-sysusers.xml index 73ba4e4a84..a55d9f6a75 100644 --- a/man/systemd-sysusers.xml +++ b/man/systemd-sysusers.xml @@ -69,15 +69,18 @@ <citerefentry><refentrytitle>sysusers.d</refentrytitle><manvolnum>5</manvolnum></citerefentry>. </para> - <para>If invoked with no arguments, it applies all directives from - all files found. If one or more filenames are passed on the - command line, only the directives in these files are applied. If - only the basename of a file is specified, all directories as - specified in - <citerefentry><refentrytitle>sysusers.d</refentrytitle><manvolnum>5</manvolnum></citerefentry> - are searched for a matching file. If the string - <literal>-</literal> is specified instead of a filename, entries from the - standard input of the process are read.</para> + <para>If invoked with no arguments, it applies all directives from all files + found in the directories specified by + <citerefentry><refentrytitle>sysusers.d</refentrytitle><manvolnum>5</manvolnum></citerefentry>. + When invoked with positional arguments, if option + <option>--replace=<replaceable>PATH</replaceable></option> is specified, arguments + specified on the command line are used instead of the configuration file + <replaceable>PATH</replaceable>. Otherwise, just the configuration specified by + the command line arguments is executed. The string <literal>-</literal> may be + specified instead of a filename to instruct <command>systemd-sysusers</command> + to read the configuration from standard input. If only the basename of a file is + specified, all configuration directories are searched for a matching file and + the file found that has the highest priority is executed.</para> </refsect1> <refsect1> @@ -94,6 +97,46 @@ paths. </para></listitem> </varlistentry> + <varlistentry> + <term><option>--replace=<replaceable>PATH</replaceable></option></term> + <listitem><para>When this option is given, one ore more positional arguments + must be specified. All configuration files found in the directories listed in + <citerefentry><refentrytitle>sysusers.d</refentrytitle><manvolnum>5</manvolnum></citerefentry> + will be read, and the configuration given on the command line will be + handled instead of and with the same priority as the configuration file + <replaceable>PATH</replaceable>.</para> + + <para>This option is intended to be used when package installation scripts + are running and files belonging to that package are not yet available on + disk, so their contents must be given on the command line, but the admin + configuration might already exist and should be given higher priority. + </para> + + <example> + <title>RPM installation script for radvd</title> + + <programlisting>echo 'u radvd - "radvd daemon"' | \ + systemd-sysusers --replace=/usr/lib/sysusers.d/radvd.conf -</programlisting> + + <para>This will create the radvd user as if + <filename>/usr/lib/sysusers.d/radvd.conf</filename> was already on disk. + An admin might override the configuration specified on the command line by + placing <filename>/etc/sysusers.d/radvd.conf</filename> or even + <filename>/etc/sysusers.d/00-overrides.conf</filename>.</para> + + <para>Note that this is the expanded from, and when used in a package, this + would be written using a macro with "radvd" and a file containing the + configuration line as arguments.</para> + </example> + </listitem> + </varlistentry> + + <varlistentry> + <term><option>--inline</option></term> + <listitem><para>Treat each positional argument as a separate configuration + line instead of a file name.</para></listitem> + </varlistentry> + <xi:include href="standard-options.xml" xpointer="help" /> <xi:include href="standard-options.xml" xpointer="version" /> </variablelist> |