Interesting stuff. You can have 3-4-5 X sessions each with a different
window manager. It works when run from a TTY but I can't get it working from
a terminal in an existing session, despite what the author claims. What's
more interesting is it doesn't seem to any much of an additional load on the
CPU. I am sure there is one but the effect is minimal. However still far
away from my original idea of replacing GDM with a BASH script(s). But a lot
closer than I was this morning :)
I must've misunderstood you. I thought that you wanted to run your
three WMs simultaneously.
If you just want a script to launch one of your WMs, something like
this should do:
$ cat wm.sh
case $1 in
wm1)
/usr/bin/startx /path/to/wm1/executable
;;
wm2)
/usr/bin/startx /path/to/wm2/executable
;;
wm3)
/usr/bin/startx /path/to/wm3/executable
;;
*)
/usr/bin/startx /path/to/wmX/executable
;;
esac