opensolaris man page for yes

yes(1)								   User Commands							    yes(1)

NAME
       yes - generate repetitive affirmative output

SYNOPSIS
       yes [term]...

DESCRIPTION
       The  yes utility repeatedly outputs y, or if term is specified, term is output repeatedly. In the output, either y or term is followed by a
       NEWLINE. Multiple arguments are output separated by spaces and followed by a NEWLINE. To terminate yes, issue an interrupt character.

       yes can be used to respond programatically to programs that require an interactive response.

ATTRIBUTES
       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Availability		     |SUNWesu			   |
       +-----------------------------+-----------------------------+

SEE ALSO
       attributes(5)

SunOS 5.11							    20 Dec 2006 							    yes(1)