The R Project SVN R

% File src/library/base/man/interactive.Rd
% Part of the R package, http://www.R-project.org
% Copyright 1995-2007 R Core Development Team
% Distributed under GPL 2 or later

\name{interactive}
\alias{interactive}
\title{Is R Running Interactively?}
\description{ 
  Return \code{TRUE} when \R is being used interactively and
  \code{FALSE} otherwise.
}
\usage{
interactive()
}
\seealso{
  \code{\link{source}},
  \code{\link{.First}}
}
\examples{
 .First <- function() if(interactive()) x11()
}
\keyword{environment}
\keyword{programming}