Check if char in string?

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Check if char in string?
\ globalrev (7 May 2008)
. \ Marc Heiler (7 May 2008)
. \ Stefano Crocco (7 May 2008)
. . \ Sandro Paganotti (7 May 2008)
. \ globalrev (7 May 2008)
. \ (matt neuburg) (7 May 2008)
. \ globalrev (7 May 2008)
. . \ Joel VanderWerf (7 May 2008)
. . \ Daniel Finnie (7 May 2008)
. . \ Todd Benson (7 May 2008)
. \ (matt neuburg) (7 May 2008)
. \ RedWiz (7 May 2008)
. \ globalrev (7 May 2008)
. . \ Joel VanderWerf (7 May 2008)
. . \ Tim Hunter (7 May 2008)
. . . \ Todd Benson (7 May 2008)
. . . . \ Todd Benson (7 May 2008)
. \ globalrev (8 May 2008)
. . \ Heesob Park (8 May 2008)
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. \ Jim Cochrane (8 May 2008)
. . \ Colin Bartlett (8 May 2008)
. \ Ashutosh (8 May 2008)
. \ globalrev (8 May 2008)
. . \ Heesob Park (8 May 2008)
. . . \ Todd Benson (8 May 2008)
. \ globalrev (8 May 2008)
. . \ Adam Shelly (8 May 2008)
. . \ Todd Benson (8 May 2008)
. \ globalrev (9 May 2008)
. . \ Heesob Park (9 May 2008)

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Subject:	Check if char in string?
Group:	Ruby-talk
From:	globalrev
Date:	7 May 2008

how do i do this:

str = "you muppet"

if "y" in str:
print "its in there"

whats the best source for documentation on Ruby? i googled and checked
the homepage of ruby but there isnt really a clear one or im jus
duuumb.