-.\" @(#)expr.1 6.1 (Berkeley) 4/29/85
+.\" Copyright (c) 1993
+.\" The Regents of the University of California. All rights reserved.
.\"
-.TH EXPR 1 "April 29, 1985"
+.\" This module is believed to contain source code proprietary to AT&T.
+.\" Use and redistribution is subject to the Berkeley Software License
+.\" Agreement and your Software Agreement with AT&T (Western Electric).
+.\"
+.\" @(#)expr.1 8.1 (Berkeley) 5/31/93
+.\"
+.TH EXPR 1 "May 31, 1993"
.AT 3
.SH NAME
expr \- evaluate arguments as an expression