.Dd Aug 02, 2020
.Dt flu 1
.Os
.Sh NAME
.Nm flu
.Nd forwarded log uniques
.Sh SYNOPSIS
.Nm flu
.Op Ar
.Sh DESCRIPTION
The
.Nm
utility reads
each
.Op Ar
in
.Em Forwarded Log Format
and prints only the
.Em uniques
to standard output.
.Pp
.Em uniques
are defined as unique remote hosts
that made at least one
.Em GET
request to paths ending in
.Pa /
or
.Pa .html
that returned a
.Em 200
HTTP response status code.
.Pp
If
.Op Ar
is omitted,
.Nm
reads from standard input.
.Sh EXIT STATUS
.Ex -std
.Sh EXAMPLES
Print all
.Em uniques
from
.Pa /var/www/logs/access.log:
.Pp
.Dl $ flu /var/www/logs/access.log
.Pp
.Sh SEE ALSO
.Xr awk 1
.Xr httpd 8
.Xr httpd.conf 5
.Xr clu 1
.Xr cblu 1