LOGINCTL(1)loginctlLOGINCTL(1)NAME
loginctl, systemd-loginctl - Control the systemd login manager
SYNOPSISloginctl [OPTIONS...] {COMMAND} [NAME...]
DESCRIPTIONloginctl may be used to introspect and control the state of the
systemd(1) login manager systemd-logind.service(8).
OPTIONS
The following options are understood:
--help, -h
Prints a short help text and exits.
--version
Prints a short version string and exits.
--property=, -p
When showing session/user/ properties, limit display to certain
properties as specified as argument. If not specified all set
properties are shown. The argument should be a property name, such
as Sessions. If specified more than once all properties with the
specified names are shown.
--all, -a
When showing unit/job/manager properties, show all properties
regardless whether they are set or not.
--no-pager
Do not pipe output into a pager.
--no-ask-password
Don't query the user for authentication for privileged operations.
--kill-who=
When used with kill-session, choose which processes to kill. Must
be one of leader, or all to select whether to kill only the leader
process of the session or all processes of the session. If omitted
defaults to all.
--signal=, -s
When used with kill-session or kill-user, choose which signal to
send to selected processes. Must be one of the well known signal
specifiers such as SIGTERM, SIGINT or SIGSTOP. If omitted defaults
to SIGTERM.
-H, --host
Execute operation remotely. Specify a hostname, or username and
hostname separated by @, to connect to. This will use SSH to talk
to the remote login manager instance.
-P, --privileged
Acquire privileges via PolicyKit before executing the operation.
The following commands are understood:
list-sessions
List current sessions.
session-status [ID...]
Show terse runtime status information about one or more sessions.
This function is intended to generate human-readable output. If you
are looking for computer-parsable output, use show-session instead.
show-session [ID...]
Show properties of one or more sessions or the manager itself. If
no argument is specified properties of the manager will be shown.
If a session ID is specified properties of the session is shown. By
default, empty properties are suppressed. Use --all to show those
too. To select specific properties to show use --property=. This
command is intended to be used whenever computer-parsable output is
required. Use session-status if you are looking for formatted
human-readable output.
activate [ID...]
Activate one or more sessions. This brings one or more sessions
into the foreground, if another session is currently in the
foreground on the respective seat.
lock-session [ID...], unlock-session [ID...]
Activates/deactivates the screen lock on one or more sessions, if
the session supports it.
terminate-session [ID...]
Terminates a session. This kills all processes of the session and
deallocates all resources attached to the session.
kill-session [ID...]
Send a signal to one or more processes of the session. Use
--kill-who= to select which process to kill. Use --signal= to
select the signal to send.
list-users
List currently logged in users.
user-status [USER...]
Show terse runtime status information about one or more logged in
users. This function is intended to generate human-readable output.
If you are looking for computer-parsable output, use show-user
instead. Users may be specified by their usernames or numeric user
IDs.
show-user [USER...]
Show properties of one or more users or the manager itself. If no
argument is specified properties of the manager will be shown. If a
user is specified properties of the user is shown. By default,
empty properties are suppressed. Use --all to show those too. To
select specific properties to show use --property=. This command is
intended to be used whenever computer-parsable output is required.
Use user-status if you are looking for formatted human-readable
output.
enable-linger [USER...], disable-linger [USER...]
Enable/disable user lingering for one or more users. If enabled for
a specific user a user manager is spawned for him/her at boot, and
kept around after logouts. This allows users who aren't logged in
to run long-running services.
terminate-user [USER...]
Terminates all sessions of a user. This kills all processes of all
sessions of the user and deallocates all runtime resources attached
to the user.
kill-user [USER...]
Send a signal to all processes of a user. Use --signal= to select
the signal to send.
list-seats
List currently available seats on the local system.
seat-status [NAME...]
Show terse runtime status information about one or more seats. This
function is intended to generate human-readable output. If you are
looking for computer-parsable output, use show-seat instead.
show-seat [NAME...]
Show properties of one or more seats or the manager itself. If no
argument is specified properties of the manager will be shown. If a
seat is specified properties of the seat are shown. By default,
empty properties are suppressed. Use --all to show those too. To
select specific properties to show use --property=. This command is
intended to be used whenever computer-parsable output is required.
Use seat-status if you are looking for formatted human-readable
output.
attach [NAME] [DEVICE...]
Attach one or more devices to a seat. The devices should be
specified via device paths in the /sys file system. To create a new
seat attach at least one graphics card to a previously unused seat
names. seat names may consist only of a-z, A-Z, 0-9, "-" and "_"
and must be prefixed with "seat". To drop assignment of a device to
a specific seat just reassign it to a different seat, or use
flush-devices.
flush-devices
Removes all device assignments previously created with attach.
After this call only automatically generated seats will remain and
all seat hardware is assigned to them.
terminate-seat [NAME...]
Terminates all sessions on a seat. This kills all processes of all
sessions on a seat and deallocates all runtime resources attached
to them.
EXIT STATUS
On success 0 is returned, a non-zero failure code otherwise.
ENVIRONMENT
$SYSTEMD_PAGER
Pager to use when --no-pager is not given; overrides $PAGER.
Setting this to an empty string or the value cat is equivalent to
passing --no-pager.
SEE ALSOsystemd(1), systemctl(1), systemd-logind.service(8), systemd-
logind.conf(5)AUTHOR
Lennart Poettering <lennart@poettering.net>
Developer
systemd 02/15/2013 LOGINCTL(1)