alias 符號問題 - Linux

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alias gr='grep -Rnf - . <<<'


想請問一下 <<< 這個符號是甚麼意思呢?

"<<<" 是特殊符號, google 找不太到他的意思

- . <<<

合起來不知道是甚麼

謝謝

--
If people do not believe that mathematics is simple,
it is because they do not realize how complicated life is.
-- John Louis von Neumann

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All Comments

Charlie avatarCharlie2014-03-05
bash 的 here string http://goo.gl/e3IMWW