else string matching in expect

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http://stackoverflow.com – I want to use expect for telnet after sending a command it may return different results let me say, like the following 3 possibilities 1 successful 2 normal 3 there are something wrong...blabla you can refer to ....blabla expect{ "successful" {} "normal" {} #here, for the third possibility, I want to use something like "else", so what should I put here? thanks! } (HowTos)