bash shell script 작성시 indentation이 안되는 문제..

set ai
set si
set cindent
set autoindent
set smartindent
set shiftwidth=4
set tabstop=4
set ignorecase
set hlsearch
highlight Normal ctermfg=white ctermbg=black
set background=dark
set nocompatible
set fileencodings=utf-8,euk-kr
set bs=indent,eol,start
set history=1000
set title
set showmatch
set nowrap
set wmnu
 
syntax on