R: Filename extensions

extension {raster} | R Documentation

## Filename extensions

### Description

Get or change a filename extension

### Usage

    extension(filename, value=NULL, maxchar=10)
    extension(filename) <- value

### Arguments

`filename` | A filename, with or without the path
`value` | A file extension with or without a dot, e.g., ".txt" or "txt"
`maxchar` | Maximum number of characters after the last dot in the filename, for that string to be considered a filename extension

### Value

A file extension, filename or path.

If `ext(filename)` is used without a `value` argument, it returns the file extension; otherwise it returns the filename (with new extensions set to `value`

### Examples

    fn <- "c:/temp folder/filename.exten sion"
    extension(fn)
    extension(fn) <- ".txt"
    extension(fn)
    fn <- extension(fn, '.document')
    extension(fn)
    extension(fn, maxchar=4)

[Package raster version 3.0-7 Index]