\name{redisDecr}
\alias{redisDecr}
\title{Decrement a value by one.}
\description{Decrement the value corresponding to the specified key by one.
}
\usage{
redisDecr(key)
}
\arguments{
  \item{key}{A key corresponding to the value to decrement.
}
}
\details{
The value should be a character representation of an integer.
If the key does not exist or contains a value of a wrong type, set the 
key to the value of "0" before to perform the operation.
}
\value{
The new value of key after the decrement, returned as a character
string.
}
\references{
http://redis.io/commands
}
\author{
B. W. Lewis
}

\seealso{
\code{\link{redisIncr}}
}
\examples{
\dontrun{
redisSet('x','5')
redisDecr('x')
}
}