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How can I extract the extension of a file given a file path as a character? I know I can do this via regular expression regexpr("\\.([[:alnum:]]+)$", x), but wondering if there’s a built-in function to deal with this?
This is the sort of thing that easily found with R basic tools. E.g.: ??path.
Anyway, load the
toolspackage and read?file_ext.