10-15-2002
if my guess is right, you are looking for a way to
log off idle users? right
you could write a script to log off idle users
here is a korn shell script that could log off users that is idle for more than 60minutes or 1 hour, this script log off idle user apart from root users and users log on to the console
#!/usr/bin/ksh
who -u | sed -e "s/\./0/" -e "s/://g" |awk '$6 > 60 {print $1" "$2" "$7}' | \
while read -r NAME TER PID
do
if [ "$NAME" = "root" ]
then
echo " Idle root users can not be log off " >/dev/null
else
if [ "$TER" = "console" ]
then
echo "user logged in at the console can not be log off " >/dev/null
else
kill -9 $PID
fi
fi
done
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LEARN ABOUT PLAN9
consolefs
CONSOLEFS(4) Kernel Interfaces Manual CONSOLEFS(4)
NAME
consolefs, C - file system for console access
SYNOPSIS
aux/consolefs name dev [ name dev ... ]
C system
DESCRIPTION
To ease administration of multiple machines one might attach many serial console lines to a single computer. Consolefs is a file system
that lets multiple users simultaneously access these console lines. Each name/dev pair represents the name of a console and the serial
line device associated with it. Consolefs presents a single level directory with two files per console: name and namectl. Writes of name
are equivalent to writes of dev and reads and writes of namectl are equivalent to reads and writes of devctl. Consolefs broadcasts any-
thing it reads from dev to all readers of name. Therefore, many users can con(1) to a name, see all console output, and enter commands to
the console.
To keep users from inadvertently interfering with one another, notification is broadcast to all readers whenever a user opens or closes
name. For example, if user boris opens a console that users vlad and barney have already opened, all will read the message:
[+boris, vlad, barney]
If vlad then closes, boris and barney will read:
[-vlad, boris, barney]
Consolefs posts the client end of its 9P channel in /srv/consolefs; mount (see bind(1)) this file to see the consoles. An example of 2
consoles complete with console logging is:
% aux/consolefs bootes /dev/eia0 fornax /dev/eia1
% mount /srv/consoles /mnt/consoles
% ls -p /mnt/consoles
bootes
bootesctl
fornax
fornaxctl
% cat /mnt/consoles/fornax >> /sys/log/fornax &
% cat /mnt/consoles/bootes >> /sys/log/bootes &
The rc(1) script C automates this procedure. It uses import(4) to connect to /mnt/consoles on the machine connected to all the consoles,
then uses con(1) to connect to the console of the machine system. The script must be edited at installation by the local administration to
identify the system that holds /mnt/consoles.
FILES
/srv/consoles
Client end of pipe to server.
SOURCE
/sys/src/cmd/aux/consolefs.l
/rc/bin/C
CONSOLEFS(4)