shell .....\Debug .....\.....\shell.obj .....\.....\shell.pch .....\.....\vc60.idb .....\.....\vc60.pdb .....\nachos_syscall.c .....\nachos_syscall.cpp .....\nachos_syscall.h .....\shell.c .....\shell.dsp .....\shell.dsw .....\shell.ncb .....\shell.opt .....\shell.plg