08-04-2015
As I mentioned my post that my process is hanging.I need to trace out the reason of hanging.
So I require something which dumps continuously until the hang occurs.I can not predict when the process gets hang.
Regards
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LEARN ABOUT LINUX
ctluser
CTLUSER(8) System Manager's Manual CTLUSER(8)
NAME
ctluser - control lusers
SYNOPSIS
ctluser [ -h ] [ -m ] command [ argument... ]
DESCRIPTION
Ctluser sends a message to the control channel of a given luser(8) This command can only be run by the sysadmin(1)
In the normal mode of behavior, the message is sent to the luser's brain, which then performs the requested action and sends back a reply
with a text message and the exit code for ctluser. If the luser's brain successfully performed the command, ctluser will exit with a sta-
tus of zero and print the reply on standard output.
The ``-m'' flag is used to display an MPEG of the results of the given command on the console of the sysadmin(1) Note that this requires
the sysadmin(1) to be running an X server.
To see a command summary, use the ``-h'' flag. If a command is included when ctluser is invoked with the ``-h'' flag, then only the usage
for that command will be given.
The complete list of commands follows. Note that all commands have a fixed number of arguments. If a parameter can be an empty string,
then it is necessary to specify it as two adjacent quotes, like "".
addhist <entry>
Add an entry to the luser's employment record.
allow reason
Allow a luser to use the computer system again. The reason must be the same text given with an earlier ``reject'' command. Note
that this command is currently not implemented.
begin name
Begin a new luser(1) with the given file. Note that this command is currently not implemented.
cancel pid
Causes a process of a luser to be killed
changegroup group
Changes a luser from their current workgroup to the one specified.
checkfile
Forces a user to return to a paper based system
drop Causes a large mass to drop onto the luser from a great height.
flushlogs
Destorys all logs of the actions done by the sysadmin(1) to the luser.
go reason
The luser is fired for the given reason.
hangup Makes the luser hang themselves
mode Displays the operating mode of the luser
newgroup group
Causes a luser to make their own newgroup up
pause thought
Makes the luser pause for the given thought. Note that this may cause some lusers to crash
shutdown reason
Makes the luser shutdown. This is essentially the same as killing them
signal sig
Sends the given signal to the luser
throttle reason
Causes the luser to throttle themselves
trace item flag
Gives the sysadmin(1) information on what the luser is doing.
BUGS
Ctluser sometimes has the effect of lusers complaining the to management. The use of bosskill(8) maybe required at this point.
HISTORY
Written by Simon Burr <simes@tcp.co.uk>. Based upon the manual page for ctlinnd(8), part of the InterNetNews system.
SEE ALSO
luser(1), sysadmin(1), bosskill(8)
19 October 1995 CTLUSER(8)