生成字符画

http://patorjk.com/software/taag/#p=display&f=Graffiti&t=Type Something

vim /etc/motd

     .=""=.
    / _  _ \
   |  d  b  |
   \   /\   /
  ,/'-=\/=-'\,
 / /        \ \
| /          \ |
\/ \        / \/
    '.    .'
    _|`~~`|_
    /|\  /|\
 _   _      _ _          _           __      _
| | | | ___| | | ___    | |__   ___ / _| ___(_)
| |_| |/ _ \ | |/ _ \   | '_ \ / _ \ |_ / _ \ |
|  _  |  __/ | | (_) |  | | | |  __/  _|  __/ |
|_| |_|\___|_|_|\___( ) |_| |_|\___|_|  \___|_|
                    |/