R: Determines the path of the currently running script

thisfile {rprojroot} | R Documentation

## Determines the path of the currently running script

### Description

R does not store nor export the path of the currently running script. This is an attempt to circumvent this limitation by applying heuristics (such as call stack and argument inspection) that work in many cases. CAVEAT: Use this function only if your workflow does not permit other solution: if a script needs to know its location, it should be set outside the context of the script if possible.

### Usage

    thisfile()

    thisfile_source()

    thisfile_r()

    thisfile_rscript()

    thisfile_knit()

### Details

This functions currently work only if the script was `source`d, processed with `knitr`, or run with `Rscript` or using the `--file` parameter to the `R` executable. For code run with `Rscript`, the exact value of the parameter passed to `Rscript` is returned.

### Value

The path of the currently running script, NULL if it cannot be determined.

### Author(s)

Kirill Müller, Hadley Wickham, Michael R. Head

### References

http://stackoverflow.com/q/1815606/946850

### See Also

`base::source()`, `utils::Rscript()`, `base::getwd()`

### Examples

    ## Not run: thisfile()

[Package rprojroot version 1.3-2 Index]