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commandArgs {base}

Extract Command Line Arguments
Package: 
base
Version: 
R 3.0.1

Description

Provides access to a copy of the command line arguments supplied when this R session was invoked.

Usage

commandArgs(trailingOnly = FALSE)

Arguments

trailingOnly
logical. Should only arguments after --args be returned?

Details

These arguments are captured before the standard R command line processing takes place. This means that they are the unmodified values. This is especially useful with the --args command-line flag to R, as all of the command line after that flag is skipped.

Values

A character vector containing the name of the executable and the user-supplied command line arguments. The first element is the name of the executable by which R was invoked. The exact form of this element is platform dependent: it may be the fully qualified name, or simply the last component (or basename) of the application, or for an embedded R it can be anything the programmer supplied.

If trailingOnly = TRUE, a character vector of those arguments (if any) supplied after --args.

See Also

Startup

Examples

commandArgs()
## Spawn a copy of this application as it was invoked,
## subject to shell quoting issues
## system(paste(commandArgs(), collapse = " "))

Documentation reproduced from R 3.0.1. License: GPL-2.