fileext returns extension for a file path

## Syntax

    extension = fileext(fullpath)

## Arguments

fullpath

  a string matrix, the given file path.

extension

  a string matrix, the extension part is any or `''`.

## Description

`extension = fileext(fullpath)` splits the fullpath character string in the extension part including the dot.

## Examples

    extension = fileext('SCI/etc/scilab.start')
    extension = fileext(['SCI/etc/scilab.start';'SCI/etc/scilab.quit'])

## See also

- fileparts