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currently in use.
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currently in use.
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The file name is made by concatenating the path given by
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The file name is made by concatenating the path given by
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\code{tmpdir}, the \code{pattern} string, a random string in hex and
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\code{tmpdir}, the \code{pattern} string, a random string in hex and
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a suffix of \code{fileext}.
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a suffix of \code{fileext}.
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By default, \code{tmpdir} will be the directory given by
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By default, \code{tmpdir} will be the directory given by
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\code{tempdir()}. This will be a subdirectory of the per-session
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\code{tempdir()}. This will be a subdirectory of the per-session
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temporary directory found by the following rule when the \R session is
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temporary directory found by the following rule when the \R session is
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started. The environment variables \env{TMPDIR}, \env{TMP} and
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started. The environment variables \env{TMPDIR}, \env{TMP} and
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\env{TEMP} are checked in turn and the first found which points to a
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\env{TEMP} are checked in turn and the first found which points to a
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