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NAME | SYNOPSIS | DESCRIPTION | OPTIONS | EXIT STATUS | SEE ALSO | NOTES | COLOPHON |
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SYSTEMD-SYSUSERS(8) systemd-sysusers SYSTEMD-SYSUSERS(8)
systemd-sysusers, systemd-sysusers.service - Allocate system
users and groups
systemd-sysusers [OPTIONS...] [CONFIGFILE...]
systemd-sysusers.service
systemd-sysusers creates system users and groups, based on the
file format and location specified in sysusers.d(5).
If invoked with no arguments, it applies all directives from all
files found in the directories specified by sysusers.d(5). When
invoked with positional arguments, if option --replace=PATH is
specified, arguments specified on the command line are used
instead of the configuration file PATH. Otherwise, just the
configuration specified by the command line arguments is
executed. The string "-" may be specified instead of a filename
to instruct systemd-sysusers 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.
The following options are understood:
--root=root
Takes a directory path as an argument. All paths will be
prefixed with the given alternate root path, including config
search paths.
--image=image
Takes a path to a disk image file or block device node. If
specified all operations are applied to file system in the
indicated disk image. This is similar to --root= but operates
on file systems stored in disk images or block devices. The
disk image should either contain just a file system or a set
of file systems within a GPT partition table, following the
Discoverable Partitions Specification[1]. For further
information on supported disk images, see systemd-nspawn(1)'s
switch of the same name.
--replace=PATH
When this option is given, one ore more positional arguments
must be specified. All configuration files found in the
directories listed in sysusers.d(5) 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 PATH.
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.
Example 1. RPM installation script for radvd
echo 'u radvd - "radvd daemon"' | \
systemd-sysusers --replace=/usr/lib/sysusers.d/radvd.conf -
This will create the radvd user as if
/usr/lib/sysusers.d/radvd.conf was already on disk. An admin
might override the configuration specified on the command
line by placing /etc/sysusers.d/radvd.conf or even
/etc/sysusers.d/00-overrides.conf.
Note that this is the expanded form, and when used in a
package, this would be written using a macro with "radvd" and
a file containing the configuration line as arguments.
--inline
Treat each positional argument as a separate configuration
line instead of a file name.
--cat-config
Copy the contents of config files to standard output. Before
each file, the filename is printed as a comment.
--no-pager
Do not pipe output into a pager.
-h, --help
Print a short help text and exit.
--version
Print a short version string and exit.
On success, 0 is returned, a non-zero failure code otherwise.
systemd(1), sysusers.d(5), Users, Groups, UIDs and GIDs on
systemd systems[2]
1. Discoverable Partitions Specification
https://systemd.io/DISCOVERABLE_PARTITIONS
2. Users, Groups, UIDs and GIDs on systemd systems
https://systemd.io/UIDS-GIDS
This page is part of the systemd (systemd system and service
manager) project. Information about the project can be found at
⟨http://www.freedesktop.org/wiki/Software/systemd⟩. If you have
a bug report for this manual page, see
⟨http://www.freedesktop.org/wiki/Software/systemd/#bugreports⟩.
This page was obtained from the project's upstream Git repository
⟨https://github.com/systemd/systemd.git⟩ on 2020-12-18. (At that
time, the date of the most recent commit that was found in the
repository was 2020-12-18.) If you discover any rendering
problems in this HTML version of the page, or you believe there
is a better or more up-to-date source for the page, or you have
corrections or improvements to the information in this COLOPHON
(which is not part of the original manual page), send a mail to
man-pages@man7.org
systemd 247 SYSTEMD-SYSUSERS(8)
Pages that refer to this page: sysusers.d(5), systemd.directives(7), systemd.index(7)
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