diff --git a/shell/vimrc b/shell/vimrc
index 211756c..1bee0df 100644
--- a/shell/vimrc
+++ b/shell/vimrc
@@ -98,4 +98,13 @@ map <S-F7> :r!xclip -o<CR>
 let g:netrw_bufsettings = 'noma nomod nu nobl nowrap ro'
 " status line
 set laststatus=2
+" netrw ignore pyc
+let g:netrw_list_hide= '.*\.pyc$,.*\.o$,.*\.out$'
+" no wildmenu completion for
+set wildignore+=*.a,*.o
+set wildignore+=*.bmp,*.gif,*.ico,*.jpg,*.png
+set wildignore+=.DS_Store,.git,.hg,.svn
+set wildignore+=*~,*.swp,*.swo,*.tmp
+" drop undo/redo history
+command Z :set undoreload=0|edit