title: Backspace key not working in Vim/vi
body: <p>I just did some changes to the <code>.vimrc</code> file and <code>.bash_aliases</code> file and from that time I can't delete words with backspace key.</p>
  
  <p>My <code>.vimrc</code> file has:</p>
  
  <pre><code>set nocompatible
  
  set number
  set incsearch
  set autoindent
  set ruler
  set autowrite
  set smarttab
  set linebreak
  set spell
  set et
  set title
  
  set mouse=v
  set history=50
  set tabstop=4
  set matchtime=2
  set matchpairs+=&lt;:&gt;
  
  syntax enable
  filetype plugin indent on
  filetype indent on
  set sw=4
  
  map &lt;f2&gt; :w\|!python %
  
  hi SpellBad ctermfg=000 guifg=#000
  </code></pre>
  
  <p>And my <code>.bash_aliases</code> file has two line for Vim:</p>
  
  <pre><code>alias vim="vim -c 'startinsert' -u ~/.vim/.vimrc"
  alias vi="vi -c 'startinsert' -u ~/.vim/.vimrc"
  </code></pre>
  
  <p>My <code>~/.vim</code> directory doesn't have a single plugin or script, so there's isn't any chance that plugin will cause this.</p>
  
  <p><code>~/.vim/.vimrc</code> is a symlink. The actual <code>.vimrc</code> file is in <code>~/vimrc/</code> directory which is a git repository.</p>