gistfile1.txt

" Only do this part when compiled with support for autocommands.                    
if has("autocmd")

  " Enable file type detection.                                                     
  " Use the default filetype settings, so that mail gets 'tw' set to 72,            
  " 'cindent' is on in C files, etc.                                                
  " Also load indent files, to automatically do language-dependent indenting.       
  filetype plugin indent on 

  " Put these in an autocmd group, so that we can delete them easily.               
  augroup vimrcEx                                                                   
  au!          
  autocmd FileType perl setlocal ts=4 sw=4 et ai    
  augroup END                                                                       

else                                                                                

  set autoindent                " always set autoindenting on                       

endif " has("autocmd")