twiglet(1) [debian man page]

TWIGLET(1)							   User's Manual							TWIGLET(1)

NAME

       twiglet - observe or control an RVC-enabled machine's console

SYNOPSIS

       twiglet [OPTION]... host-specification

DESCRIPTION

       twiglet	is a program for controlling another machine's console.  It works using the RVC protocol, and an RVC server (such as rvcd(1)) must
       be running on the machine to be observed.

       Using twiglet, the a best effort attempt is made to duplicate the screen contents of the observed machine.  If the machine is displaying  a
       virtual	text  console,	the text on the console is rendered in the terminal in which twiglet runs.  If the machine is displaying an X ses-
       sion, and the RVC server supports VNC integration, twiglet will open a window that contains the current contents of the X display.

       It is also possible to control the observed machine in various ways.  With keyboard control enabled (and with support from the RVC server),
       keys  may  be  sent  to	the  observed  machine in text console mode almost as if they were typed from the keyboard.  Twiglet also supports
       switching virtual console on the observed machine.  Finally, if VNC integration is available, the X display can be manipulated almost as if
       the user were at the console.

       The  intended  use for twiglet is in training and teaching environments.  The idea is that there are student machines and a control machine
       (which the trainer or teacher would be using), with a serial line attached to each student machine.  The trainer or teacher can	then  ana-
       lyse  the  students' attempts to complete tasks, and help them out (showing them how to finish it) without needed to push them aside to get
       to the keyboard.

       This client is written using ncurses(3X).

OPTIONS

       --help display a help message and exit successfully

       --version
	      display a version number and exit successfully

       -c, --control
	      control the remote machine rather than just observing it

       -e xy, --escape xy
	      set the escape character and the escape escape character (like screen(1))

       The host-specification takes one of the following forms:

       host:port
	      to connect to an RVC server over TCP

       tty [host]
	      to communicate with an RVC server over a tty (for example a serial line); the optional hostname is for VNC integration

BUGS

       I'm sure there are bugs, but I don't know what they are.

AUTHOR

       Tim Waugh <twaugh@redhat.com>

VTGRAB
								    20 Sep 2000 							TWIGLET(1)

PVM(1PVM)							  PVM Version 3.4							 PVM(1PVM)

NAME

       pvm - PVM version 3 console

SYNOPSIS

       pvm [ -options ] [ hostfile ]

DESCRIPTION

       Pvm  is a stand alone PVM task which allows the user to interactively query and modify the virtual machine.  The console can be started and
       stopped multiple times on any of the hosts in the virtual machine without affecting PVM or any applications that may be running.

       When started pvm determines if PVM is already running and if not automatically executes pvmd3 on this host, passing pvmd3 the command  line
       options and host file.  Thus PVM need not be running to start the console.  Once started the console prints the prompt:
	    pvm>

       The following console commands are available:
	   add	hostname(s)    - Add hosts to virtual machine
	   alias	       - Define/list command aliases
	   conf 	       - List virtual machine configuration
	   delete  hostname(s) - Delete hosts from virtual machine
	   echo 	       - Echo arguments
	   export	       - Add environment variables to spawn export list
	   halt 	       - Stop pvmds
	   help [command]      - Print helpful information about a command
	   id		       - Print console task id
	   jobs 	       - List running jobs
	   kill  task-tid      - Terminate tasks
	   mstat host-tid      - Show status of hosts
	   ps -a	       - List all PVM tasks
	   pstat task-tid      - Show status of tasks
	   quit 	       - Exit console
	   reset	       - Kill all tasks
	   setenv	       - Display/set environment variables
	   sig	signum task    - Send signal to task
	   spawn [opt] a.out   - Spawn task
		opts are: -(count)  number of tasks, default is 1
		    -(host)   spawn on host, default is any
		    -(ARCH)   spawn on hosts of ARCH
		    -?	      enable debugging
			  ->	    redirect task output to console
			  -> file   redirect task output to file
			  ->>file   redirect task output append to file
	   trace	       - Set/display trace event mask
	   unexport - Remove environment variables from spawn export list
	   unalias - Undefine command alias
	   version - Show libpvm version

       pvm reads $HOME/.pvmrc before reading commands from the tty, so it can be used to customize the console environment, for example:
	   alias ? help
	   alias j jobs
	   setenv PVM_EXPORT DISPLAY
	   # print my id
	   echo new pvm shell
	   id

EXAMPLES

	    pvm
       Starts up pvmd3 on the local host or connects to running pvmd3.

	    pvm  hostfile
       Starts up console and pvmd3, which inturn reads the host file and adds the listed computers to the virtual machine.

SEE ALSO

       pvm_intro(1PVM), pvmd3(1PVM)

								  30 August, 1993							 PVM(1PVM)