no sids are given.

    An sid suffix ':0' operates on an unauthenticated session with the given
    sid, and a suffix ':1' on an authenticated session (the default).

session purge &lt;age&gt;

    Purge all anonymous sessions older than the given age

    Age may be specified as a relative time like "90 days ago", or in YYYYMMDD
    format.

session set &lt;name|email&gt; &lt;sid[:0|1]&gt; &lt;value&gt;

    Set the name or email attribute of the given sid

    An sid suffix ':0' operates on an unauthenti