These are the good times in your life, so put on a smile and it'll be alright
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Help poor children in Uganda!
vi 对 emacs 用户埋了个炸弹:c-x c-s 会进到 ^x mode,一时间什么都不管用了,c-q 可退出
c-x c-s
^x mode
c-q
$vi .vimrc cmap w!! w !sudo dd of=%