extension ';' PATH
Macro
The file extension of the given path or empty string if no extension
Returns the file extension of the specified path. The last segment of the path is examined for a . separating the extension from the rest of the file name. The extension is returned or, if the file name has no extension, an empty string is returned.
Examples
# returns 'def'
${extension;abcdef.def}
${extension;/foo.bar/abcdefxyz.def}
# Returns empty string
${extension;abcdefxyz}
${extension;/foo.bar/abcdefxyz}