Daffy:
One easy way to bring up some command line utilities from a menu is to use the -e option in xterm.
I do this typically with "top" and ncmpc
Code:
[Desktop Entry]
Version=1.0
Name=NcMpc
Comment=NCurses Mpd Frontend
Exec=/usr/bin/X11/xterm -e "ncmpc"
Icon=/usr/share/icons/gnome/32x32/mimetypes/audio-x-generic.png
Terminal=false
Categories=AudioVideo;Player;
The above example is from my Debian Desktop so you will need to adjust paths accordingly for BSD