Setting Term under System V

[Brandon Allbery]

Expires:

Quoted from <2735 at sun.uucp> ["Re: Setting TERM"], by guy at sun.uucp (Guy Harris)...
+---------------
| > 	Does SysV have anything along the lines of Berkeley's
| > /etc/ttytype database for specifing terminal types?
| 
| Well, if you fix a bit of brain damage in "login", the tools are already
| there.  "login" reams out the environment when it's entered, and builds a
| new one.  It should propagate the value of TERM from the environment on

	.	.	.

| Another alternative which may be better (both for S5 and 4.3BSD, which also
| permits you to run things other than "/etc/getty" as a login program) would
| be to have a program which opens a terminal for input and output as file
| descriptors 0, 1, and 2, creates a new process group for itself and connects

	.	.	.

I have a better idea.  We're talking System V, right?  So, if you have the
Berkeley tool ``tset'' put the following in /etc/profile (and /etc/cshprofile
if you have csh with the correct patches; Plexus sys[35] does):

	SH					CSH

TERM="`tset -`"; export TERM		setenv TERM "`tset -`"

If not, a cheap ``tset -'' can be built easily and placed in /etc/profile.  It
would be something like:

	: #
	# Print the terminal type from /etc/ttytype.  This file has terminals
	# and TERM values as follows:
	#
	#	^ttytype<tab>terminal$
	#
	# where ^ is beginning of line and $ is end of line.
	#
	
	grep "<tab>`tty`\$" /etc/ttytype | cut -f2

Note that the format of this /etc/ttytype is rather fixed.

If you don't have an /etc/profile -- Are you sure you're running System V?  Or
did AT&T realize it had done something right in System III and remove it from
System V?

--bsa
-- 
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