解決vim沒有顏色的辦法

問題起因，在兩台host上用同樣的方法編譯了同樣的vim73包，可是運行的時候，一台host上vim有顏色，而另一台卻沒有顏色。於是開始偵查。

首先打開vim，輸入命令 scriptnames看看vim加載了哪些腳本。

:scriptnames

輸出入下

  1: /home/users/xxx/.vimrc
  2: /home/users/xxx/tools/share/vim/vim73/colors/darkblue.vim
  3: /home/users/xxx/tools/share/vim/vim73/syntax/syntax.vim
  4: /home/users/xxx/tools/share/vim/vim73/syntax/synload.vim
  5: /home/users/xxx/tools/share/vim/vim73/syntax/syncolor.vim
  6: /home/users/xxx/tools/share/vim/vim73/filetype.vim
  7: /home/users/xxx/tools/share/vim/vim73/plugin/getscriptPlugin.vim
  8: /home/users/xxx/tools/share/vim/vim73/plugin/gzip.vim
  9: /home/users/xxx/tools/share/vim/vim73/plugin/matchparen.vim
 10: /home/users/xxx/tools/share/vim/vim73/plugin/netrwPlugin.vim
 11: /home/users/xxx/tools/share/vim/vim73/plugin/rrhelper.vim
 12: /home/users/xxx/tools/share/vim/vim73/plugin/spellfile.vim
 13: /home/users/xxx/tools/share/vim/vim73/plugin/tarPlugin.vim
 14: /home/users/xxx/tools/share/vim/vim73/plugin/tohtml.vim
 15: /home/users/xxx/tools/share/vim/vim73/plugin/vimballPlugin.vim
 16: /home/users/xxx/tools/share/vim/vim73/plugin/zipPlugin.vim

可見所有和語法及顏色相關的腳本都已經加載了，應該不是它們的問題。

在看.vimrc配置文件

  1 set nocompatible        " Vim settings, not Vi settings.  must be first
  2 set autoindent          " Auto align when insert new line, for instance, when using o or O to insert new line.
  3 set ruler               " Show ruler at the bottom-right of vim window
  4 set showcmd
  5 set backspace=indent,eol,start          " Enable delete for backspace under insert mode"
  6 colorscheme darkblue
  7 set number              " Show line number
  8 syntax on
  9 if &term =~ "xterm"
 10   if has("terminfo")
 11     set t_Co=8
 12     set t_Sf=^[[3%p1%dm
 13     set t_Sb=^[[4%p1%dm
 14   else
 15     set t_Co=8
 16     set t_Sf=^[[3%dm
 17     set t_Sb=^[[4%dm
 18   endif
 19 endif

從第9行開始，如果用的是xterm，那就就進行下面的顏色設置，那么如果系統用的不是xterm呢？於是趕緊查看，在shell終端輸入如下命令

echo $TERM

結果如下

vt100+

果然不是xterm，怪不得沒有顏色。

解決辦法：打開shell配置文件，.bash_profile或.bashrc加入下面一行

TERM=xterm
export TERM

重新敲一下bash，再次運行vim，顏色來啦！興奮！