find -exec option

Say , i want to find some files and do chmod and do something with it with another command, eg

find . -name "*.txt" -exec chmod 666 "{}" && cp "{}" /dst \;

it says

find: missing argument to `-exec'

How do I properly use this -exec construct? I think the problem is with the "&&" ? I need to use this &开发者_如何学JAVAamp;& operator in case chmod fails thank you

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Just use another -exec e.g.

find . -name \*.txt -exec chmod 666 {} \; -exec cp {} /dst/ \;

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Either write a little shell script and -exec that or use multiple -exec's.