Linux equivalent of Solaris '/bin/ckyorn'

[Chris Janicki]

Is there a Linux equivalent of Solaris '/bin/ckyorn' (which literally 
means "check yes or no").  I use ckyorn in a Solaris shell script to pose 
questions for my application's installation shell script.  I'm not a 
shell guru, so ckyorn has been very helpful with command line 
interactions during installs.  What's the best way to interact within a 
Linux shell?  

For example, my installer has to ask boolean and text input questions 
like:

	Do you accept the license agreement?  [yes|no]
	
	Enter the name of your location: [Boston, MA]
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