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+.Dd January  3, 2022
+.Dt RFC 1
+.Os
+.
+.Sh NAME
+.Nm rfc ,
+.Nm rfctags
+.Nd view IETF RFCs
+.
+.Sh SYNOPSIS
+.Nm rfc
+.Op Ar number
+.Nm rfc
+.Fl b Ar number
+.Nm rfctags
+.Op Ar
+.
+.Sh DESCRIPTION
+The
+.Nm rfc
+utility displays
+an IETF RFC by number,
+or the RFC index if no number is specified.
+The RFC is displayed in the
+.Ev PAGER
+with a tags file generated by
+.Nm rfctags .
+The
+.Fl b
+option outputs an
+.Xr mdoc 7
+bibliographic block.
+.
+.Pp
+The
+.Nm rfctags
+utility generates tags
+for RFC text file
+section numbers,
+section names
+and bracketed references.
+.
+.Sh ENVIRONMENT
+.Bl -tag -width Ds
+.It Ev PAGER
+The program used to display RFCs.
+It must accept the
+.Fl T
+flag for specifying
+the path of the tags file.
+The default is
+.Ev PAGER=less .
+.El
+.
+.Sh SEE ALSO
+.Xr ctags 1 ,
+.Xr less 1
+.
+.Sh AUTHORS
+.An June Bug Aq Mt june@causal.agency