pmx_get_extension: Get file extension
Description
Extract file extension from the filename string.
Usage
pmx_get_extension(x, dot = TRUE)
Arguments
x
A string or vector of strings containing the filenames with the extension.
dot
Logical, if `TRUE` the returned value will contain the
dot (e.g `.mod`) else only the extension itself will be returned (e.g. `mod`).
Value
A string or vector of string of the file(s) extension.