haha="haha" hehe="tt" echo $haha |grep "xx" && hehe="xx" || (echo $haha |grep "xx" && hehe="xx" || echo "ok hehe fuzhi" && hehe="cc" && echo "hehe is"$hehe) echo "after fuzhi hehe is "$hehe
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你已经把 tt 这个值给 hehe变量了,读 $hehe 的值就是 tt
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