sfeed_atom —
    format feed data to an Atom feed
sfeed_atom formats feed data (TSV) from
    sfeed(1)
    from stdin or for each file to stdout as an Atom (XML)
    feed. If one or more file arguments are specified then
    the basename of the file is used as the feed name in
    the output. If no file arguments are specified and so
    the data is read from stdin then the feed name is empty.
If sfeed_atom is reading from one or more
    file arguments it will prefix the entry title with
    "[feed name] ".
The sfeed_atom utility exits 0 on
    success, and >0 if an error occurs.
sfeed_atom ~/.sfeed/feeds/*