[SunHELP] $DISPLAY for root

[David Ledger]

>
>  > >Hi,
>>  >When I "su -" to any user the display is not set.
>>  >I can't remember if this was happening always but I
>>  started noticing it
>>  >after installing ssh and enabling X11 forwarding.
>>  >Note: this happens even when ssh is not in use.
>>  >Thanks for any help or suggestions, always
>>  appreciated.
>>  >
>  > >Dave Baldwin

# Set the DISPLAY global environment variable.
	if [ ! "$DISPLAY" ]; then
	       set -A DISPLAY $(who -um)
	       DISPLAY=${DISPLAY[$((${#DISPLAY[*]} - 1))]}
	       DISPLAY=${DISPLAY%:0.0}:0.0
	       export DISPLAY

should do it.  My .profile calls a script that does the above first, 
and if that fails to give an answer it looks up the process tree to 
find the xterm process.  My xterm starter scripts always use the 
-display as the first parameter so it appears in a ps list for that 
reason.

David.

-- 
David Ledger - Freelance Unix Sysadmin in the UK.
Chair of SysAdmin SIG of HP/Works technical user group
dledger at ivdcs.co.uk (also dledger at ivdcs.demon.co.uk)
www.ivdcs.co.uk