bashワンライナーで関数宣言

bashワンライナーで関数を書こうとしてつまずいた。
二つ下のディレクトリをなんどもgrepする必要があるので書いたのだが

search_proj() { grep -i $1 */*.scala; }


のセミコロンを忘れてて、「あれ？　定義できない」の繰り返し。

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