I am trying to figure out why I can't use ghostscript or ghostview (or any other X11 applications) when I try to call them in the Terminal.  I am using bash, and I also used Fink to get the packages I need.  I am using GMT (generic mapping tools), and the commands within this gmt package that don't need x11 run perfectly fine, but when I try to display a postscript, using either the command $ gs or $ gv, I get these error messages, respectively:  gv: Unable to open the display. and GPL Ghostscript 9.10: Cannot open X display ':0'.**** Unable to open the initial device, quitting.I have tried many edits that I've found online, such as adding editing the ~./profile, as shown below: test -r /sw/bin/init.sh && . /sw/bin/init.sh. /sw/bin/init.shexport DISPLAY=:0The saving grace here is that if I run the same commands from gmt in xterm (the terminal in X11), the graphic I need is created just fine.  All I want to do is have X11 called through the terminal, but right now, I cannot get it working.
Using X11 Displays through Terminal.app commands : generic mapping tools
bash;terminal;x11;ghostscript