Can I pass variables to rlogin?

[James Cameron]

>>>>> On 14 Apr 91 23:10:50 GMT, umh at vax5.cit.cornell.edu said:

[...deleted lines concerning how to work on several computers in X windows...]

umh> Or am I barking up the wrong tree? Is this nicely fixed by some X magic, not
umh> using UNIX at all?

umh> If anyone has been able to do something like this, please tell me. I'll
umh> summarize any methods I find, of general interest.

umh> Maynard Handley


The solution I use is the script which follows; I did not write it and
I am unsure of who did, but there are many similiar to this one out
there.  This should completely solve your problem.

---xshell---
#!/bin/csh -f
#
#	this sets up an xterm on the remote machine at the same time
#	performing a xhost for the remote machine on the display machine
#
#	First, find the name of the display
#
set command=$0
if ( $#argv  == 0 ) then
	echo Usage: $command:t hostname
	exit 1
endif
set remotehost=$1
shift
set displayhost=`printenv DISPLAY | sed -e 's/:.*//'`
#
#	Now we need to see if this has the right name
#
switch ( $displayhost )

	case	unix:	# display on the local host
			xhost $remotehost
			if ( $status != 0 ) then
				echo xhost failed on local machine
				exit 1
			endif
			set displayhost=`hostname`
			breaksw

	case	"":	# not an X device
			echo The environment variable DISPLAY is not
			echo set. You must issue the command \"$command:t\"
			echo from an X device.
			exit 1
			breaksw

	default:	# display on a remote host
			echo "setenv DISPLAY ${displayhost}:0.0 ; xhost $remotehost" | rsh $displayhost csh -t
			if ( $status != 0 ) then
				echo xhost failed on machine \"$displayhost\".
				exit 1
			endif
			breaksw
endsw

rsh $remotehost xterm -display ${displayhost}:0.0 -ls -n $remotehost $argv &

exit 0
--
					-- James Cameron  (jc at raven.bu.edu)

Signal Processing and Interpretation Lab.  Boston, Mass  (617) 353-2879
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