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NAME | SYNOPSIS | DESCRIPTION | OPTIONS | EXIT STATUS | SEE ALSO | NOTES | COLOPHON |
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 2020-08-13. (At that
time, the date of the most recent commit that was found in the repos‐
itory was 2020-08-11.) 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 246 SYSTEMD-SYSUSERS(8)
Pages that refer to this page: 30-systemd-environment-d-generator(7) , systemd.index(7)