.Dd Mar 30, 2022
.Dt cblfb
.Os
.Sh NAME
.Nm cblfb
.Nd combined log humans
.Sh SYNOPSIS
.Nm cbl
.Op Ar
.Sh DESCRIPTION
The
.Nm
utility prints the bot filtered requests from a http log
.Ar file
in
.Em Combined Log Format
to standard output. If
.Ar file
is absent,
.Nm
reads from standard input.
.Sh ENVIRONMENT
.Bl -tag -width BOTSFILE
.It Ev BOTSFILE
The file containing bot filtering patterns. It will be used
to filter http user agents. 
.Sh EXIT STATUS
.Ex -std
.Sh EXAMPLES
Print bot filtered requests from
.Pa file1
to standard output:
.Pp
.Dl $ cblfb file1
.Sh SEE ALSO
.Xr awk 1