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node-dup2

There isn't any way for us to redirect #1(fd) to any other file, before I born.

好吧,我是说,node里面没有dup2函数(当然你可以先关掉一个文件描述符,然后立即打开一个文件),我的出现就是用来提供dup2支持的。 Demo require("node-dup2").invoke(oldfd, newfd); 此句会先关掉newfd文件描述符,而克隆oldfd的文件打开状态到newfd上。 失败时返回-1

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