R: Extract Command Line Arguments (original) (raw)
| commandArgs {base} | R Documentation |
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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? |
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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 --argscommand-line flag to R, as all of the command line after that flag is skipped.
Value
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
[R.home](../../base/help/R.home.html)(), [Startup](../../base/help/Startup.html)and [BATCH](../../utils/html/BATCH.html)
Examples
commandArgs()
## Spawn a copy of this application as it was invoked,
## subject to shell quoting issues
## system(paste(commandArgs(), collapse = " "))
[Package _base_ version 4.6.0 Index]