$ ./ch11-2.pl /etc/X11
.
..
Xsession.options
Xresources
   .
   ..
   xbase-clients
   xterm
   xterm~
   xfree86-common
   tetex-base
window-managers
fvwm
   .
   ..
   system.warnings
   update.warn
   pre.hook
   default-style.hook
   system.fvwm2rc
   init.hook
   restart.hook
   init-restart.hook
   main-menu-pre.hook
   main-menu.hook
   menudefs.hook
   post.hook
xinit
   .
   ..
   xinitrc
wm-common
   .
   ..
xview
   .
   ..
   textswrc
   ttyswrc
   text_extras_menu
XF86Config
WindowMaker
   .
   ..
   background.menu
   menu.prehook
   menu
   menu.ca
   menu.cz
   menu.da
   menu.de
   menu.el
   menu.es
   menu.fi
   menu.fr
   menu.gl
   menu.he
   menu.hr
   menu.hu
   menu.it
   menu.ja
   menu.ko
   menu.nl
   menu.no
   menu.pt
   menu.ru
   menu.se
   menu.sl
   menu.tr
   menu.zh_CN
   menu.zh_TW.Big5
   plmenu
   plmenu.dk
   plmenu.fr
   plmenu.hr
   plmenu.zh_CN
   wmmacros
   menu.posthook
   menu.hook
   plmenu.da
   plmenu.it
   appearance.menu
Xsession
fonts
   .
   ..
   100dpi
      .
      ..
      xfonts-100dpi.alias
   misc
      .
      ..
      xfonts-base.alias
      xfonts-jmk.alias
   75dpi
      .
      ..
      xfonts-75dpi.alias
   Speedo
      .
      ..
      xfonts-scalable.scale
   Type1
      .
      ..
      xfonts-scalable.scale
xserver
   .
   ..
   SecurityPolicy
XF86Config~
Xmodmap
Xserver
afterstep
   .
   ..
   menudefs.hook
Xserver~
Xloadimage
window-managers~
