sessreg1
Manage utmpx/wtmpx entries for non-init clients
Usage
sessreg [-w
wtmpx-file]
[-u
utmpx-file]
[-L
lastlog-file]
[-l
line-name]
[-h
host-name]
[-s
slot-number]
[-x
Xservers-file]
[-t
ttys-file]
[-V]
[-a]
[-d]
user-name
Overview
Sessreg is a simple program for managing utmpx/wtmpx and lastlog entries for xdm sessions.
This version of sessreg is built using the modern POSIX pututxline(3c) interfaces, which no longer require the slot-number, ttys-file, or Xservers-file mappings. For compatibility with older versions and other operating systems, the -s, -t, and -x flags are accepted, but ignored.
Usage
In Xstartup, place a call like:
sessreg -a -l $DISPLAY -x /etc/X11/xdm/Xservers $USER
and in Xreset:
sessreg -d -l $DISPLAY -x /etc/X11/xdm/Xservers $USER
Options
-
-w wtmpx-file -
This specifies an alternate wtmpx file, instead of
/var/log/wtmp. The special name "none" disables writing records to the wtmpx file.
-
-u utmpx-file -
This specifies an alternate utmpx file, instead of
/var/run/utmp. The special name "none" disables writing records to the utmpx file.
-
-L lastlog-file -
This specifies an alternate lastlog file, instead of
/var/log/lastlog, if the platform supports lastlog files. The special name "none" disables writing records to the lastlog file.
-
-l line-name -
This describes the "line" name of the entry. For terminal sessions, this is the final pathname segment of the terminal device filename (e.g. ttyd0). For X sessions, it should probably be the local display name given to the users session (e.g. :0). If none is specified, the terminal name will be determined with ttyname(3) and stripped of leading components.
-
-h host-name -
This is set to indicate that the session was initiated from a remote host. In typical xdm usage, this options is not used.
-
-s slot-number -
This option is accepted for compatibility, but does nothing in this version of
sessreg.
-
-x Xservers-file -
This option is accepted for compatibility, but does nothing in this version of
sessreg.
-
-t ttys-file -
This option is accepted for compatibility, but does nothing in this version of
sessreg.
-
-V, --version -
This option causes the command to print its version and exit.
-
-a -
This session should be added to utmpx/wtmpx.
-
-d -
This session should be deleted from utmpx/wtmpx. One of
-a/-dmust be specified.
Releases
12 releases since Debian 2.1 (Slink); the text changed 10 times.
--version since Arch Linux 2026-11-01;
-L since Debian 6.0 (Squeeze);
-V since Debian 8 (Jessie).