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From: dye@laidbak.i88.isc.com (Ken R. Dye )
Newsgroups: comp.windows.x
Subject: Re: Xterm ECS sequence
Keywords: xterm
Message-ID: <1989Sep14.183844.11835@i88.isc.com>
Date: 14 Sep 89 18:38:44 GMT
References: <5309@ucdavis.ucdavis.edu> <2617@husc6.harvard.edu>
Sender: usenet@i88.isc.com (Usenet News)
Reply-To: dye@i88.isc.com (Ken R. Dye )
Distribution: usa
Organization: Interactive Systems Corporation, Naperville, IL
Lines: 51

In article <2617@husc6.harvard.edu> kochhar@endor.UUCP (Sandeep Kochhar) writes:
>In article <5309@ucdavis.ucdavis.edu> lee@iris.ucdavis.EDU (Peng Lee) writes:
>>
>>I notice certain ECS sequence can change the TITLE of xterm.   I like to 
>>write a script or a alias to change title.  Would one of the Xperts out 
>>there give me a hint?
>>
>>Thanx
>>
>>-Peng (lee@iris.ucdavis.ed)
>
>I use:
>	alias xname echo ']L\!*'
>
>Then 
>	xname foo
>changes the name of the xterm to foo...

	This also changes the icon name, which is ugly if you change
it to something long.  I use TWM, with titlebars, and a neat way to
display your current directory in the title bar is: (ugly frag from .cshrc)

if ($?prompt) then     # interactive shell; set prompts and aliases
        set prompt="$USER@${HOST}: \!% "
        if ($term == sun) then
                alias   cd      'chdir \!*;echo -n "^[]l ${HOST}:$cwd^[\"'
        else if (($term == vt100)||($term == xterms)||($term == xterm)) then
                alias   cd      'chdir \!*;echo -n ^[]2 $HOST\:$cwd^M'
        else
                alias   cd      'chdir \!*;set prompt=$HOST\:$cwd\:\ \\!%\ '
                cd
        endif
        alias pu pushd \!\*\;cd .
        alias po popd\;cd .
endif

	The <ESC>]2 {string}<^M> is what does the work (note the 2 instead
of L in the above example; this just changes the title only.

	Note that the ^[ (two characters) is actually one, the ESC
character, generated on the BSD line disipline by control-v followed
by an ESC.  Likewise, the ^M is input by control-v followed by control-m.
The ^M could be any unprintable character, if you look at the ESC doc.
These are BSD specific examples, and will have to be modified to
run under a different shell or SYSV.  The escape sequences should be
good for any X11 xterm, however.
-- 
Ken R. Dye				an optimist is a guy
Lachman Associates, Inc. Chicago	that has never had
(800) LAI-UNIX x341			much experience
..{sun|sequent|spl1}!laidbak!dye			archy