Just keep reading, it says 
C<basename()> returns the last level of a filepath even if the last
level is clearly directory.  In effect, it is acting like C<pop()> for
paths.  This differs from C<fileparse()>'s behaviour.

    # Both return "bar"
    basename("/foo/bar");
    basename("/foo/bar/");

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In reply to Re^3: extract file name from a dynamic path by Anonymous Monk
in thread extract file name from a dynamic path by dani_cv

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