The script is useful in case you need to replace one IP address with another in all your system files — for instance, if your default router has changed.

倘若您要在您所有系统文件中对一个IP地址用另一个IP地址替代(例如，如果您缺省的路由器已更改了)，则该脚本很有用。

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Searching for "default router passwords" will turn up a number of sites that list the default usernames and passwords for most routers on the market.

搜索“默认的路由器密码”将得到许多列出市场上大部分路由器的默认用户名和密码的站点。

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Leaving a server or router with the default passwords is practically an invitation for unscrupulous (or even just curious) people to start poking around.

保留服务器或路由器中的缺省密码，这无异于邀请那些不择手段的(甚至仅仅只是好奇的)人侵入系统。

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