Re: [Gnuplot-info] path problem with gnuplot and x11 on mac os 10.3.9

[<br...@ph...>]

Wayne Saslow wrote:
> If I try to get gnuplot from Terminal, I get the gnuplot login info, 
> followed by
> ***
> Terminal type set to 'unknown'
> ***
> 
> If I try "set term x11" I get the response
> ***
> Terminal type set to 'x11'
> Options are '0'
> gnuplot>
> gnuplot: unable to open display ''
> gnuplot: X11 aborted.
> ***

You get that response on "set term x11" for the same reason that caused 
the defaul terminal type to rever to "unknown":  your Terminal session 
is misconfigured for running X11 programs.  The environment variable 
DISPLAY is missing.  Without that, *no* X11 program can be expected to work.

> Problem 2 is curious:
> If I open a window in xterm, gnuplot is defined only in the home 
> directory.  

That's a sign of trouble.  It would indicate you put the gnuplot binary 
directly into your home directory --- that's definitely not where you 
want to install such things.  You should either do it the "Microsoft 
Way" (i.e. one installation directory tree per program, and a *very 
long* PATH statement listing all those you don't want to call with an 
explicit complete path), or the Unix way (a few directories like 
/usr/bin, /usr/local/bin and $HOME/bin which hold all installed programs).

 > I thought that I had added the appropriate path to
> etc/usr/csh.login.  

Don't rely on what you thought you did --- check what actually is set, 
and what isn't.  Is your xterm really using csh as its login shell?  If 
so, what *is* the path set to (--> type "echo $path" or "echo $PATH").